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Finding the Fourth Proportional to 591,061.70, 886,009.35 and 291,296.90

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Solution

The fourth proportional to 591,061.70, 886,009.35 and 291,296.90 is: 436,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,061.70 : 886,009.35 = 291,296.90 : x
  2. Step 2: Convert to fraction form
    591,061.70/886,009.35 = 291,296.90/x
  3. Step 3: Cross multiply
    591,061.70x = 886,009.35 × 291,296.90
  4. Step 4: Simplify right side
    591,061.70x = 258,091,777,026.02
  5. Step 5: Solve for x
    x = 258,091,777,026.02/591,061.70
  6. Step 6: Final answer
    x = 436,657.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.