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Finding the Fourth Proportional to 371,709.60, 558,001.80 and 369,085.20

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Solution

The fourth proportional to 371,709.60, 558,001.80 and 369,085.20 is: 554,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,709.60 : 558,001.80 = 369,085.20 : x
  2. Step 2: Convert to fraction form
    371,709.60/558,001.80 = 369,085.20/x
  3. Step 3: Cross multiply
    371,709.60x = 558,001.80 × 369,085.20
  4. Step 4: Simplify right side
    371,709.60x = 205,950,205,953.36
  5. Step 5: Solve for x
    x = 205,950,205,953.36/371,709.60
  6. Step 6: Final answer
    x = 554,062.11

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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.