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Finding the Fourth Proportional to 580,324.60, 870,386.64 and 153,863.38

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Solution

The fourth proportional to 580,324.60, 870,386.64 and 153,863.38 is: 230,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,324.60 : 870,386.64 = 153,863.38 : x
  2. Step 2: Convert to fraction form
    580,324.60/870,386.64 = 153,863.38/x
  3. Step 3: Cross multiply
    580,324.60x = 870,386.64 × 153,863.38
  4. Step 4: Simplify right side
    580,324.60x = 133,920,630,337.24
  5. Step 5: Solve for x
    x = 133,920,630,337.24/580,324.60
  6. Step 6: Final answer
    x = 230,768.49

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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.