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Finding the Fourth Proportional to 541,780.02, 747,648.88 and 312,337.76

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Solution

The fourth proportional to 541,780.02, 747,648.88 and 312,337.76 is: 431,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,780.02 : 747,648.88 = 312,337.76 : x
  2. Step 2: Convert to fraction form
    541,780.02/747,648.88 = 312,337.76/x
  3. Step 3: Cross multiply
    541,780.02x = 747,648.88 × 312,337.76
  4. Step 4: Simplify right side
    541,780.02x = 233,518,971,926.62
  5. Step 5: Solve for x
    x = 233,518,971,926.62/541,780.02
  6. Step 6: Final answer
    x = 431,021.75

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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.