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Finding the Fourth Proportional to 349,017.60, 523,600.80 and 199,329.60

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Solution

The fourth proportional to 349,017.60, 523,600.80 and 199,329.60 is: 299,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,017.60 : 523,600.80 = 199,329.60 : x
  2. Step 2: Convert to fraction form
    349,017.60/523,600.80 = 199,329.60/x
  3. Step 3: Cross multiply
    349,017.60x = 523,600.80 × 199,329.60
  4. Step 4: Simplify right side
    349,017.60x = 104,369,138,023.68
  5. Step 5: Solve for x
    x = 104,369,138,023.68/349,017.60
  6. Step 6: Final answer
    x = 299,036.89

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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.