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Finding the Fourth Proportional to 855,793.13, 1,181,012.54 and 468,624.87

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Solution

The fourth proportional to 855,793.13, 1,181,012.54 and 468,624.87 is: 646,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,793.13 : 1,181,012.54 = 468,624.87 : x
  2. Step 2: Convert to fraction form
    855,793.13/1,181,012.54 = 468,624.87/x
  3. Step 3: Cross multiply
    855,793.13x = 1,181,012.54 × 468,624.87
  4. Step 4: Simplify right side
    855,793.13x = 553,451,845,682.75
  5. Step 5: Solve for x
    x = 553,451,845,682.75/855,793.13
  6. Step 6: Final answer
    x = 646,712.19

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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.