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Finding the Fourth Proportional to 533,490.95, 736,207.20 and 291,772.78

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Solution

The fourth proportional to 533,490.95, 736,207.20 and 291,772.78 is: 402,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,490.95 : 736,207.20 = 291,772.78 : x
  2. Step 2: Convert to fraction form
    533,490.95/736,207.20 = 291,772.78/x
  3. Step 3: Cross multiply
    533,490.95x = 736,207.20 × 291,772.78
  4. Step 4: Simplify right side
    533,490.95x = 214,805,219,559.50
  5. Step 5: Solve for x
    x = 214,805,219,559.50/533,490.95
  6. Step 6: Final answer
    x = 402,640.79

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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.