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Finding the Fourth Proportional to 688,920.84, 951,174.66 and 616,097.76

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Solution

The fourth proportional to 688,920.84, 951,174.66 and 616,097.76 is: 850,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,920.84 : 951,174.66 = 616,097.76 : x
  2. Step 2: Convert to fraction form
    688,920.84/951,174.66 = 616,097.76/x
  3. Step 3: Cross multiply
    688,920.84x = 951,174.66 × 616,097.76
  4. Step 4: Simplify right side
    688,920.84x = 586,016,577,394.76
  5. Step 5: Solve for x
    x = 586,016,577,394.76/688,920.84
  6. Step 6: Final answer
    x = 850,629.77

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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.