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Finding the Fourth Proportional to 525,689.80, 725,452.58 and 283,972.38

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Solution

The fourth proportional to 525,689.80, 725,452.58 and 283,972.38 is: 391,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,689.80 : 725,452.58 = 283,972.38 : x
  2. Step 2: Convert to fraction form
    525,689.80/725,452.58 = 283,972.38/x
  3. Step 3: Cross multiply
    525,689.80x = 725,452.58 × 283,972.38
  4. Step 4: Simplify right side
    525,689.80x = 206,008,495,719.74
  5. Step 5: Solve for x
    x = 206,008,495,719.74/525,689.80
  6. Step 6: Final answer
    x = 391,882.24

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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.