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Finding the Fourth Proportional to 719,797,026.82, 993,323,570.18 and 402,262,572.44

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Solution

The fourth proportional to 719,797,026.82, 993,323,570.18 and 402,262,572.44 is: 555,124,402.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,797,026.82 : 993,323,570.18 = 402,262,572.44 : x
  2. Step 2: Convert to fraction form
    719,797,026.82/993,323,570.18 = 402,262,572.44/x
  3. Step 3: Cross multiply
    719,797,026.82x = 993,323,570.18 × 402,262,572.44
  4. Step 4: Simplify right side
    719,797,026.82x = 399,576,894,605,891,648
  5. Step 5: Solve for x
    x = 399,576,894,605,891,648/719,797,026.82
  6. Step 6: Final answer
    x = 555,124,402.74

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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.