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Finding the Fourth Proportional to 220,301.76, 328,617.60 and 199,041.60

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Solution

The fourth proportional to 220,301.76, 328,617.60 and 199,041.60 is: 296,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,301.76 : 328,617.60 = 199,041.60 : x
  2. Step 2: Convert to fraction form
    220,301.76/328,617.60 = 199,041.60/x
  3. Step 3: Cross multiply
    220,301.76x = 328,617.60 × 199,041.60
  4. Step 4: Simplify right side
    220,301.76x = 65,408,572,892.16
  5. Step 5: Solve for x
    x = 65,408,572,892.16/220,301.76
  6. Step 6: Final answer
    x = 296,904.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.