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Finding the Fourth Proportional to 669,891.64, 924,501.90 and 383,501.56

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Solution

The fourth proportional to 669,891.64, 924,501.90 and 383,501.56 is: 529,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,891.64 : 924,501.90 = 383,501.56 : x
  2. Step 2: Convert to fraction form
    669,891.64/924,501.90 = 383,501.56/x
  3. Step 3: Cross multiply
    669,891.64x = 924,501.90 × 383,501.56
  4. Step 4: Simplify right side
    669,891.64x = 354,547,920,872.96
  5. Step 5: Solve for x
    x = 354,547,920,872.96/669,891.64
  6. Step 6: Final answer
    x = 529,261.60

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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.