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Finding the Fourth Proportional to 707,608,563.44, 976,572,459.96 and 425,442,917

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Solution

The fourth proportional to 707,608,563.44, 976,572,459.96 and 425,442,917 is: 587,154,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,608,563.44 : 976,572,459.96 = 425,442,917 : x
  2. Step 2: Convert to fraction form
    707,608,563.44/976,572,459.96 = 425,442,917/x
  3. Step 3: Cross multiply
    707,608,563.44x = 976,572,459.96 × 425,442,917
  4. Step 4: Simplify right side
    707,608,563.44x = 415,475,836,027,248,128
  5. Step 5: Solve for x
    x = 415,475,836,027,248,128/707,608,563.44
  6. Step 6: Final answer
    x = 587,154,901.02

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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.