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Finding the Fourth Proportional to 525,681.86, 788,522.71 and 126,322.64

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Solution

The fourth proportional to 525,681.86, 788,522.71 and 126,322.64 is: 189,483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,681.86 : 788,522.71 = 126,322.64 : x
  2. Step 2: Convert to fraction form
    525,681.86/788,522.71 = 126,322.64/x
  3. Step 3: Cross multiply
    525,681.86x = 788,522.71 × 126,322.64
  4. Step 4: Simplify right side
    525,681.86x = 99,608,266,168.73
  5. Step 5: Solve for x
    x = 99,608,266,168.73/525,681.86
  6. Step 6: Final answer
    x = 189,483.93

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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.