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Finding the Fourth Proportional to 669,648.48, 924,017.04 and 383,114.40

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Solution

The fourth proportional to 669,648.48, 924,017.04 and 383,114.40 is: 528,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,648.48 : 924,017.04 = 383,114.40 : x
  2. Step 2: Convert to fraction form
    669,648.48/924,017.04 = 383,114.40/x
  3. Step 3: Cross multiply
    669,648.48x = 924,017.04 × 383,114.40
  4. Step 4: Simplify right side
    669,648.48x = 354,004,233,869.38
  5. Step 5: Solve for x
    x = 354,004,233,869.38/669,648.48
  6. Step 6: Final answer
    x = 528,641.88

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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.