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Finding the Fourth Proportional to 369,125.20, 553,687.80 and 200,726.20

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Solution

The fourth proportional to 369,125.20, 553,687.80 and 200,726.20 is: 301,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,125.20 : 553,687.80 = 200,726.20 : x
  2. Step 2: Convert to fraction form
    369,125.20/553,687.80 = 200,726.20/x
  3. Step 3: Cross multiply
    369,125.20x = 553,687.80 × 200,726.20
  4. Step 4: Simplify right side
    369,125.20x = 111,139,648,080.36
  5. Step 5: Solve for x
    x = 111,139,648,080.36/369,125.20
  6. Step 6: Final answer
    x = 301,089.30

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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.