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Finding the Fourth Proportional to 472,938.80, 709,609.80 and 248,471.60

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Solution

The fourth proportional to 472,938.80, 709,609.80 and 248,471.60 is: 372,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,938.80 : 709,609.80 = 248,471.60 : x
  2. Step 2: Convert to fraction form
    472,938.80/709,609.80 = 248,471.60/x
  3. Step 3: Cross multiply
    472,938.80x = 709,609.80 × 248,471.60
  4. Step 4: Simplify right side
    472,938.80x = 176,317,882,381.68
  5. Step 5: Solve for x
    x = 176,317,882,381.68/472,938.80
  6. Step 6: Final answer
    x = 372,813.32

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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.