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Finding the Fourth Proportional to 372,592,987.70, 558,889,481.55 and 370,042,070.90

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Solution

The fourth proportional to 372,592,987.70, 558,889,481.55 and 370,042,070.90 is: 555,063,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,592,987.70 : 558,889,481.55 = 370,042,070.90 : x
  2. Step 2: Convert to fraction form
    372,592,987.70/558,889,481.55 = 370,042,070.90/x
  3. Step 3: Cross multiply
    372,592,987.70x = 558,889,481.55 × 370,042,070.90
  4. Step 4: Simplify right side
    372,592,987.70x = 206,812,621,156,989,312
  5. Step 5: Solve for x
    x = 206,812,621,156,989,312/372,592,987.70
  6. Step 6: Final answer
    x = 555,063,106.35

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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.