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Finding the Fourth Proportional to 389,000.16, 583,266.96 and 178,374.24

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Solution

The fourth proportional to 389,000.16, 583,266.96 and 178,374.24 is: 267,454.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,000.16 : 583,266.96 = 178,374.24 : x
  2. Step 2: Convert to fraction form
    389,000.16/583,266.96 = 178,374.24/x
  3. Step 3: Cross multiply
    389,000.16x = 583,266.96 × 178,374.24
  4. Step 4: Simplify right side
    389,000.16x = 104,039,800,707.11
  5. Step 5: Solve for x
    x = 104,039,800,707.11/389,000.16
  6. Step 6: Final answer
    x = 267,454.39

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1.5x scale

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.