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Finding the Fourth Proportional to 669,972.06, 924,146.82 and 440,555.76

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Solution

The fourth proportional to 669,972.06, 924,146.82 and 440,555.76 is: 607,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,972.06 : 924,146.82 = 440,555.76 : x
  2. Step 2: Convert to fraction form
    669,972.06/924,146.82 = 440,555.76/x
  3. Step 3: Cross multiply
    669,972.06x = 924,146.82 × 440,555.76
  4. Step 4: Simplify right side
    669,972.06x = 407,138,204,636.68
  5. Step 5: Solve for x
    x = 407,138,204,636.68/669,972.06
  6. Step 6: Final answer
    x = 607,694.30

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Double scale
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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.