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Finding the Fourth Proportional to 587,038.60, 879,901.80 and 250,021.90

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Solution

The fourth proportional to 587,038.60, 879,901.80 and 250,021.90 is: 374,753.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,038.60 : 879,901.80 = 250,021.90 : x
  2. Step 2: Convert to fraction form
    587,038.60/879,901.80 = 250,021.90/x
  3. Step 3: Cross multiply
    587,038.60x = 879,901.80 × 250,021.90
  4. Step 4: Simplify right side
    587,038.60x = 219,994,719,849.42
  5. Step 5: Solve for x
    x = 219,994,719,849.42/587,038.60
  6. Step 6: Final answer
    x = 374,753.41

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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.