Home / 865,511.16-1,194,342.84-478,321.94

Finding the Fourth Proportional to 865,511.16, 1,194,342.84 and 478,321.94

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Solution

The fourth proportional to 865,511.16, 1,194,342.84 and 478,321.94 is: 660,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,511.16 : 1,194,342.84 = 478,321.94 : x
  2. Step 2: Convert to fraction form
    865,511.16/1,194,342.84 = 478,321.94/x
  3. Step 3: Cross multiply
    865,511.16x = 1,194,342.84 × 478,321.94
  4. Step 4: Simplify right side
    865,511.16x = 571,280,387,239.77
  5. Step 5: Solve for x
    x = 571,280,387,239.77/865,511.16
  6. Step 6: Final answer
    x = 660,049.71

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Double scale
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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.