Home / 865,342.50-1,194,147.51-478,151.76

Finding the Fourth Proportional to 865,342.50, 1,194,147.51 and 478,151.76

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Solution

The fourth proportional to 865,342.50, 1,194,147.51 and 478,151.76 is: 659,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,342.50 : 1,194,147.51 = 478,151.76 : x
  2. Step 2: Convert to fraction form
    865,342.50/1,194,147.51 = 478,151.76/x
  3. Step 3: Cross multiply
    865,342.50x = 1,194,147.51 × 478,151.76
  4. Step 4: Simplify right side
    865,342.50x = 570,983,733,606.12
  5. Step 5: Solve for x
    x = 570,983,733,606.12/865,342.50
  6. Step 6: Final answer
    x = 659,835.54

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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.