Home / 525,884,803.60-788,827,205.40-321,811,459.60

Finding the Fourth Proportional to 525,884,803.60, 788,827,205.40 and 321,811,459.60

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Solution

The fourth proportional to 525,884,803.60, 788,827,205.40 and 321,811,459.60 is: 482,717,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,884,803.60 : 788,827,205.40 = 321,811,459.60 : x
  2. Step 2: Convert to fraction form
    525,884,803.60/788,827,205.40 = 321,811,459.60/x
  3. Step 3: Cross multiply
    525,884,803.60x = 788,827,205.40 × 321,811,459.60
  4. Step 4: Simplify right side
    525,884,803.60x = 253,853,634,341,963,008
  5. Step 5: Solve for x
    x = 253,853,634,341,963,008/525,884,803.60
  6. Step 6: Final answer
    x = 482,717,189.40

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Double scale
Find fourth proportional to 525,884,804.60, 788,827,206.90 and 321,811,460.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.