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Finding the Fourth Proportional to 704,854.38, 972,673.02 and 382,557.55

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Solution

The fourth proportional to 704,854.38, 972,673.02 and 382,557.55 is: 527,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,854.38 : 972,673.02 = 382,557.55 : x
  2. Step 2: Convert to fraction form
    704,854.38/972,673.02 = 382,557.55/x
  3. Step 3: Cross multiply
    704,854.38x = 972,673.02 × 382,557.55
  4. Step 4: Simplify right side
    704,854.38x = 372,103,411,515.82
  5. Step 5: Solve for x
    x = 372,103,411,515.82/704,854.38
  6. Step 6: Final answer
    x = 527,915.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.