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Finding the Fourth Proportional to 312,248.66, 468,374.22 and 75,590.96

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Solution

The fourth proportional to 312,248.66, 468,374.22 and 75,590.96 is: 113,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,248.66 : 468,374.22 = 75,590.96 : x
  2. Step 2: Convert to fraction form
    312,248.66/468,374.22 = 75,590.96/x
  3. Step 3: Cross multiply
    312,248.66x = 468,374.22 × 75,590.96
  4. Step 4: Simplify right side
    312,248.66x = 35,404,854,587.18
  5. Step 5: Solve for x
    x = 35,404,854,587.18/312,248.66
  6. Step 6: Final answer
    x = 113,386.73

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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.