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Finding the Fourth Proportional to 625,490,264.88, 863,176,672.26 and 347,031,124.11

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Solution

The fourth proportional to 625,490,264.88, 863,176,672.26 and 347,031,124.11 is: 478,903,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,490,264.88 : 863,176,672.26 = 347,031,124.11 : x
  2. Step 2: Convert to fraction form
    625,490,264.88/863,176,672.26 = 347,031,124.11/x
  3. Step 3: Cross multiply
    625,490,264.88x = 863,176,672.26 × 347,031,124.11
  4. Step 4: Simplify right side
    625,490,264.88x = 299,549,170,879,916,864
  5. Step 5: Solve for x
    x = 299,549,170,879,916,864/625,490,264.88
  6. Step 6: Final answer
    x = 478,903,010.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.