Home / 538,421.60-807,632.40-528,053.60

Finding the Fourth Proportional to 538,421.60, 807,632.40 and 528,053.60

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Solution

The fourth proportional to 538,421.60, 807,632.40 and 528,053.60 is: 792,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,421.60 : 807,632.40 = 528,053.60 : x
  2. Step 2: Convert to fraction form
    538,421.60/807,632.40 = 528,053.60/x
  3. Step 3: Cross multiply
    538,421.60x = 807,632.40 × 528,053.60
  4. Step 4: Simplify right side
    538,421.60x = 426,473,196,296.64
  5. Step 5: Solve for x
    x = 426,473,196,296.64/538,421.60
  6. Step 6: Final answer
    x = 792,080.40

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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.