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Finding the Fourth Proportional to 483,314.90, 724,281.15 and 355,961.30

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Solution

The fourth proportional to 483,314.90, 724,281.15 and 355,961.30 is: 533,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,314.90 : 724,281.15 = 355,961.30 : x
  2. Step 2: Convert to fraction form
    483,314.90/724,281.15 = 355,961.30/x
  3. Step 3: Cross multiply
    483,314.90x = 724,281.15 × 355,961.30
  4. Step 4: Simplify right side
    483,314.90x = 257,816,059,719.50
  5. Step 5: Solve for x
    x = 257,816,059,719.50/483,314.90
  6. Step 6: Final answer
    x = 533,432.88

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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.