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Finding the Fourth Proportional to 372,131.80, 558,197.70 and 369,021.40

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Solution

The fourth proportional to 372,131.80, 558,197.70 and 369,021.40 is: 553,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,131.80 : 558,197.70 = 369,021.40 : x
  2. Step 2: Convert to fraction form
    372,131.80/558,197.70 = 369,021.40/x
  3. Step 3: Cross multiply
    372,131.80x = 558,197.70 × 369,021.40
  4. Step 4: Simplify right side
    372,131.80x = 205,986,896,730.78
  5. Step 5: Solve for x
    x = 205,986,896,730.78/372,131.80
  6. Step 6: Final answer
    x = 553,532.10

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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.