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Finding the Fourth Proportional to 591,095.40, 885,330.90 and 486,119.40

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Solution

The fourth proportional to 591,095.40, 885,330.90 and 486,119.40 is: 728,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,095.40 : 885,330.90 = 486,119.40 : x
  2. Step 2: Convert to fraction form
    591,095.40/885,330.90 = 486,119.40/x
  3. Step 3: Cross multiply
    591,095.40x = 885,330.90 × 486,119.40
  4. Step 4: Simplify right side
    591,095.40x = 430,376,525,909.46
  5. Step 5: Solve for x
    x = 430,376,525,909.46/591,095.40
  6. Step 6: Final answer
    x = 728,099.94

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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.