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Finding the Fourth Proportional to 616,618.70, 924,928.05 and 476,477.90

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Solution

The fourth proportional to 616,618.70, 924,928.05 and 476,477.90 is: 714,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,618.70 : 924,928.05 = 476,477.90 : x
  2. Step 2: Convert to fraction form
    616,618.70/924,928.05 = 476,477.90/x
  3. Step 3: Cross multiply
    616,618.70x = 924,928.05 × 476,477.90
  4. Step 4: Simplify right side
    616,618.70x = 440,707,774,915.10
  5. Step 5: Solve for x
    x = 440,707,774,915.10/616,618.70
  6. Step 6: Final answer
    x = 714,716.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.