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Finding the Fourth Proportional to 645,624.70, 968,437.05 and 616,594.30

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Solution

The fourth proportional to 645,624.70, 968,437.05 and 616,594.30 is: 924,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,624.70 : 968,437.05 = 616,594.30 : x
  2. Step 2: Convert to fraction form
    645,624.70/968,437.05 = 616,594.30/x
  3. Step 3: Cross multiply
    645,624.70x = 968,437.05 × 616,594.30
  4. Step 4: Simplify right side
    645,624.70x = 597,132,764,938.82
  5. Step 5: Solve for x
    x = 597,132,764,938.82/645,624.70
  6. Step 6: Final answer
    x = 924,891.45

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Double scale
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Similar ratio
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1.5x scale

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.