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Finding the Fourth Proportional to 533,861.32, 736,728.71 and 292,143.95

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Solution

The fourth proportional to 533,861.32, 736,728.71 and 292,143.95 is: 403,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,861.32 : 736,728.71 = 292,143.95 : x
  2. Step 2: Convert to fraction form
    533,861.32/736,728.71 = 292,143.95/x
  3. Step 3: Cross multiply
    533,861.32x = 736,728.71 × 292,143.95
  4. Step 4: Simplify right side
    533,861.32x = 215,230,833,957.09
  5. Step 5: Solve for x
    x = 215,230,833,957.09/533,861.32
  6. Step 6: Final answer
    x = 403,158.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.