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Finding the Fourth Proportional to 374,712.40, 560,902.20 and 216,470.80

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Solution

The fourth proportional to 374,712.40, 560,902.20 and 216,470.80 is: 324,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,712.40 : 560,902.20 = 216,470.80 : x
  2. Step 2: Convert to fraction form
    374,712.40/560,902.20 = 216,470.80/x
  3. Step 3: Cross multiply
    374,712.40x = 560,902.20 × 216,470.80
  4. Step 4: Simplify right side
    374,712.40x = 121,418,947,955.76
  5. Step 5: Solve for x
    x = 121,418,947,955.76/374,712.40
  6. Step 6: Final answer
    x = 324,032.37

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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.