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Finding the Fourth Proportional to 591,811.70, 887,717.55 and 402,854.90

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Solution

The fourth proportional to 591,811.70, 887,717.55 and 402,854.90 is: 604,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,811.70 : 887,717.55 = 402,854.90 : x
  2. Step 2: Convert to fraction form
    591,811.70/887,717.55 = 402,854.90/x
  3. Step 3: Cross multiply
    591,811.70x = 887,717.55 × 402,854.90
  4. Step 4: Simplify right side
    591,811.70x = 357,621,364,833.50
  5. Step 5: Solve for x
    x = 357,621,364,833.50/591,811.70
  6. Step 6: Final answer
    x = 604,282.35

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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.