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Finding the Fourth Proportional to 676,491.17, 933,572.90 and 386,096.91

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Solution

The fourth proportional to 676,491.17, 933,572.90 and 386,096.91 is: 532,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,491.17 : 933,572.90 = 386,096.91 : x
  2. Step 2: Convert to fraction form
    676,491.17/933,572.90 = 386,096.91/x
  3. Step 3: Cross multiply
    676,491.17x = 933,572.90 × 386,096.91
  4. Step 4: Simplify right side
    676,491.17x = 360,449,610,019.25
  5. Step 5: Solve for x
    x = 360,449,610,019.25/676,491.17
  6. Step 6: Final answer
    x = 532,822.35

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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.