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Finding the Fourth Proportional to 372,920.40, 559,380.60 and 372,920.40

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Solution

The fourth proportional to 372,920.40, 559,380.60 and 372,920.40 is: 559,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,920.40 : 559,380.60 = 372,920.40 : x
  2. Step 2: Convert to fraction form
    372,920.40/559,380.60 = 372,920.40/x
  3. Step 3: Cross multiply
    372,920.40x = 559,380.60 × 372,920.40
  4. Step 4: Simplify right side
    372,920.40x = 208,604,437,104.24
  5. Step 5: Solve for x
    x = 208,604,437,104.24/372,920.40
  6. Step 6: Final answer
    x = 559,380.60

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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.