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Finding the Fourth Proportional to 710,014,017.83, 979,800,549.29 and 396,750,805.97

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Solution

The fourth proportional to 710,014,017.83, 979,800,549.29 and 396,750,805.97 is: 547,505,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,014,017.83 : 979,800,549.29 = 396,750,805.97 : x
  2. Step 2: Convert to fraction form
    710,014,017.83/979,800,549.29 = 396,750,805.97/x
  3. Step 3: Cross multiply
    710,014,017.83x = 979,800,549.29 × 396,750,805.97
  4. Step 4: Simplify right side
    710,014,017.83x = 388,736,657,617,491,008
  5. Step 5: Solve for x
    x = 388,736,657,617,491,008/710,014,017.83
  6. Step 6: Final answer
    x = 547,505,609.55

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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.