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Finding the Fourth Proportional to 669,839.64, 924,150.08 and 415,097.88

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Solution

The fourth proportional to 669,839.64, 924,150.08 and 415,097.88 is: 572,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,839.64 : 924,150.08 = 415,097.88 : x
  2. Step 2: Convert to fraction form
    669,839.64/924,150.08 = 415,097.88/x
  3. Step 3: Cross multiply
    669,839.64x = 924,150.08 × 415,097.88
  4. Step 4: Simplify right side
    669,839.64x = 383,612,739,009.83
  5. Step 5: Solve for x
    x = 383,612,739,009.83/669,839.64
  6. Step 6: Final answer
    x = 572,693.40

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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.