Home / 581,748.86-871,732.70-391,505.38

Finding the Fourth Proportional to 581,748.86, 871,732.70 and 391,505.38

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Solution

The fourth proportional to 581,748.86, 871,732.70 and 391,505.38 is: 586,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,748.86 : 871,732.70 = 391,505.38 : x
  2. Step 2: Convert to fraction form
    581,748.86/871,732.70 = 391,505.38/x
  3. Step 3: Cross multiply
    581,748.86x = 871,732.70 × 391,505.38
  4. Step 4: Simplify right side
    581,748.86x = 341,288,041,971.93
  5. Step 5: Solve for x
    x = 341,288,041,971.93/581,748.86
  6. Step 6: Final answer
    x = 586,658.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.