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Finding the Fourth Proportional to 347,712.40, 522,202.20 and 304,166.80

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Solution

The fourth proportional to 347,712.40, 522,202.20 and 304,166.80 is: 456,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,712.40 : 522,202.20 = 304,166.80 : x
  2. Step 2: Convert to fraction form
    347,712.40/522,202.20 = 304,166.80/x
  3. Step 3: Cross multiply
    347,712.40x = 522,202.20 × 304,166.80
  4. Step 4: Simplify right side
    347,712.40x = 158,836,572,126.96
  5. Step 5: Solve for x
    x = 158,836,572,126.96/347,712.40
  6. Step 6: Final answer
    x = 456,804.45

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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.