Home / 865,587.91-1,194,504.81-478,429.69

Finding the Fourth Proportional to 865,587.91, 1,194,504.81 and 478,429.69

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Solution

The fourth proportional to 865,587.91, 1,194,504.81 and 478,429.69 is: 660,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,587.91 : 1,194,504.81 = 478,429.69 : x
  2. Step 2: Convert to fraction form
    865,587.91/1,194,504.81 = 478,429.69/x
  3. Step 3: Cross multiply
    865,587.91x = 1,194,504.81 × 478,429.69
  4. Step 4: Simplify right side
    865,587.91x = 571,486,565,951.81
  5. Step 5: Solve for x
    x = 571,486,565,951.81/865,587.91
  6. Step 6: Final answer
    x = 660,229.38

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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.