Home / 638,947.68-881,788.08-367,102.56

Finding the Fourth Proportional to 638,947.68, 881,788.08 and 367,102.56

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Solution

The fourth proportional to 638,947.68, 881,788.08 and 367,102.56 is: 506,624.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,947.68 : 881,788.08 = 367,102.56 : x
  2. Step 2: Convert to fraction form
    638,947.68/881,788.08 = 367,102.56/x
  3. Step 3: Cross multiply
    638,947.68x = 881,788.08 × 367,102.56
  4. Step 4: Simplify right side
    638,947.68x = 323,706,661,545.49
  5. Step 5: Solve for x
    x = 323,706,661,545.49/638,947.68
  6. Step 6: Final answer
    x = 506,624.68

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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.