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Finding the Fourth Proportional to 693,516.32, 957,046.59 and 387,605.58

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Solution

The fourth proportional to 693,516.32, 957,046.59 and 387,605.58 is: 534,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,516.32 : 957,046.59 = 387,605.58 : x
  2. Step 2: Convert to fraction form
    693,516.32/957,046.59 = 387,605.58/x
  3. Step 3: Cross multiply
    693,516.32x = 957,046.59 × 387,605.58
  4. Step 4: Simplify right side
    693,516.32x = 370,956,598,603.97
  5. Step 5: Solve for x
    x = 370,956,598,603.97/693,516.32
  6. Step 6: Final answer
    x = 534,892.39

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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.