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Finding the Fourth Proportional to 669,586.40, 924,188.64 and 383,271.92

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Solution

The fourth proportional to 669,586.40, 924,188.64 and 383,271.92 is: 529,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,586.40 : 924,188.64 = 383,271.92 : x
  2. Step 2: Convert to fraction form
    669,586.40/924,188.64 = 383,271.92/x
  3. Step 3: Cross multiply
    669,586.40x = 924,188.64 × 383,271.92
  4. Step 4: Simplify right side
    669,586.40x = 354,215,554,494.99
  5. Step 5: Solve for x
    x = 354,215,554,494.99/669,586.40
  6. Step 6: Final answer
    x = 529,006.49

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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.