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Finding the Fourth Proportional to 669,564.01, 924,145.46 and 440,142.49

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Solution

The fourth proportional to 669,564.01, 924,145.46 and 440,142.49 is: 607,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,564.01 : 924,145.46 = 440,142.49 : x
  2. Step 2: Convert to fraction form
    669,564.01/924,145.46 = 440,142.49/x
  3. Step 3: Cross multiply
    669,564.01x = 924,145.46 × 440,142.49
  4. Step 4: Simplify right side
    669,564.01x = 406,755,683,886.60
  5. Step 5: Solve for x
    x = 406,755,683,886.60/669,564.01
  6. Step 6: Final answer
    x = 607,493.35

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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.