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Finding the Fourth Proportional to 389,594.96, 584,409.08 and 152,988.92

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Solution

The fourth proportional to 389,594.96, 584,409.08 and 152,988.92 is: 229,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,594.96 : 584,409.08 = 152,988.92 : x
  2. Step 2: Convert to fraction form
    389,594.96/584,409.08 = 152,988.92/x
  3. Step 3: Cross multiply
    389,594.96x = 584,409.08 × 152,988.92
  4. Step 4: Simplify right side
    389,594.96x = 89,408,113,987.39
  5. Step 5: Solve for x
    x = 89,408,113,987.39/389,594.96
  6. Step 6: Final answer
    x = 229,489.91

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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.