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Finding the Fourth Proportional to 669,798.64, 924,318.46 and 363,872.60

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Solution

The fourth proportional to 669,798.64, 924,318.46 and 363,872.60 is: 502,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,798.64 : 924,318.46 = 363,872.60 : x
  2. Step 2: Convert to fraction form
    669,798.64/924,318.46 = 363,872.60/x
  3. Step 3: Cross multiply
    669,798.64x = 924,318.46 × 363,872.60
  4. Step 4: Simplify right side
    669,798.64x = 336,334,161,268.20
  5. Step 5: Solve for x
    x = 336,334,161,268.20/669,798.64
  6. Step 6: Final answer
    x = 502,142.20

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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.