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Finding the Fourth Proportional to 577,117.71, 865,676.58 and 156,393.57

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Solution

The fourth proportional to 577,117.71, 865,676.58 and 156,393.57 is: 234,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,117.71 : 865,676.58 = 156,393.57 : x
  2. Step 2: Convert to fraction form
    577,117.71/865,676.58 = 156,393.57/x
  3. Step 3: Cross multiply
    577,117.71x = 865,676.58 × 156,393.57
  4. Step 4: Simplify right side
    577,117.71x = 135,386,250,811.59
  5. Step 5: Solve for x
    x = 135,386,250,811.59/577,117.71
  6. Step 6: Final answer
    x = 234,590.36

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Double scale
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Similar ratio
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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.