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Finding the Fourth Proportional to 474,804.80, 712,207.20 and 225,972.80

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Solution

The fourth proportional to 474,804.80, 712,207.20 and 225,972.80 is: 338,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,804.80 : 712,207.20 = 225,972.80 : x
  2. Step 2: Convert to fraction form
    474,804.80/712,207.20 = 225,972.80/x
  3. Step 3: Cross multiply
    474,804.80x = 712,207.20 × 225,972.80
  4. Step 4: Simplify right side
    474,804.80x = 160,939,455,164.16
  5. Step 5: Solve for x
    x = 160,939,455,164.16/474,804.80
  6. Step 6: Final answer
    x = 338,959.20

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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.