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Finding the Fourth Proportional to 314,947.62, 472,324.41 and 90,247.74

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Solution

The fourth proportional to 314,947.62, 472,324.41 and 90,247.74 is: 135,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,947.62 : 472,324.41 = 90,247.74 : x
  2. Step 2: Convert to fraction form
    314,947.62/472,324.41 = 90,247.74/x
  3. Step 3: Cross multiply
    314,947.62x = 472,324.41 × 90,247.74
  4. Step 4: Simplify right side
    314,947.62x = 42,626,210,549.33
  5. Step 5: Solve for x
    x = 42,626,210,549.33/314,947.62
  6. Step 6: Final answer
    x = 135,343.81

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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.