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Finding the Fourth Proportional to 668,936.32, 923,132.76 and 382,462.40

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Solution

The fourth proportional to 668,936.32, 923,132.76 and 382,462.40 is: 527,798.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,936.32 : 923,132.76 = 382,462.40 : x
  2. Step 2: Convert to fraction form
    668,936.32/923,132.76 = 382,462.40/x
  3. Step 3: Cross multiply
    668,936.32x = 923,132.76 × 382,462.40
  4. Step 4: Simplify right side
    668,936.32x = 353,063,570,908.22
  5. Step 5: Solve for x
    x = 353,063,570,908.22/668,936.32
  6. Step 6: Final answer
    x = 527,798.48

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Similar ratio
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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.