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Finding the Fourth Proportional to 526,705.48, 726,948.18 and 297,332.68

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Solution

The fourth proportional to 526,705.48, 726,948.18 and 297,332.68 is: 410,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,705.48 : 726,948.18 = 297,332.68 : x
  2. Step 2: Convert to fraction form
    526,705.48/726,948.18 = 297,332.68/x
  3. Step 3: Cross multiply
    526,705.48x = 726,948.18 × 297,332.68
  4. Step 4: Simplify right side
    526,705.48x = 216,145,450,580.52
  5. Step 5: Solve for x
    x = 216,145,450,580.52/526,705.48
  6. Step 6: Final answer
    x = 410,372.51

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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.