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Finding the Fourth Proportional to 372,592,992.70, 558,889,489.05 and 370,042,075.90

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Solution

The fourth proportional to 372,592,992.70, 558,889,489.05 and 370,042,075.90 is: 555,063,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,592,992.70 : 558,889,489.05 = 370,042,075.90 : x
  2. Step 2: Convert to fraction form
    372,592,992.70/558,889,489.05 = 370,042,075.90/x
  3. Step 3: Cross multiply
    372,592,992.70x = 558,889,489.05 × 370,042,075.90
  4. Step 4: Simplify right side
    372,592,992.70x = 206,812,626,726,752,288
  5. Step 5: Solve for x
    x = 206,812,626,726,752,288/372,592,992.70
  6. Step 6: Final answer
    x = 555,063,113.85

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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.