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Finding the Fourth Proportional to 707,494,654.89, 976,415,276.25 and 425,328,444.33

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Solution

The fourth proportional to 707,494,654.89, 976,415,276.25 and 425,328,444.33 is: 586,996,930.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,494,654.89 : 976,415,276.25 = 425,328,444.33 : x
  2. Step 2: Convert to fraction form
    707,494,654.89/976,415,276.25 = 425,328,444.33/x
  3. Step 3: Cross multiply
    707,494,654.89x = 976,415,276.25 × 425,328,444.33
  4. Step 4: Simplify right side
    707,494,654.89x = 415,297,190,467,459,648
  5. Step 5: Solve for x
    x = 415,297,190,467,459,648/707,494,654.89
  6. Step 6: Final answer
    x = 586,996,930.08

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1.5x scale

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.