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Finding the Fourth Proportional to 668,937.32, 923,134.14 and 382,463.40

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Solution

The fourth proportional to 668,937.32, 923,134.14 and 382,463.40 is: 527,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,937.32 : 923,134.14 = 382,463.40 : x
  2. Step 2: Convert to fraction form
    668,937.32/923,134.14 = 382,463.40/x
  3. Step 3: Cross multiply
    668,937.32x = 923,134.14 × 382,463.40
  4. Step 4: Simplify right side
    668,937.32x = 353,065,021,840.48
  5. Step 5: Solve for x
    x = 353,065,021,840.48/668,937.32
  6. Step 6: Final answer
    x = 527,799.86

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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.