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Finding the Fourth Proportional to 669,834.08, 924,369.54 and 383,359.76

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Solution

The fourth proportional to 669,834.08, 924,369.54 and 383,359.76 is: 529,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,834.08 : 924,369.54 = 383,359.76 : x
  2. Step 2: Convert to fraction form
    669,834.08/924,369.54 = 383,359.76/x
  3. Step 3: Cross multiply
    669,834.08x = 924,369.54 × 383,359.76
  4. Step 4: Simplify right side
    669,834.08x = 354,366,085,005.71
  5. Step 5: Solve for x
    x = 354,366,085,005.71/669,834.08
  6. Step 6: Final answer
    x = 529,035.62

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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.