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Finding the Fourth Proportional to 517,261.77, 775,389.45 and 247,319.76

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Solution

The fourth proportional to 517,261.77, 775,389.45 and 247,319.76 is: 370,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,261.77 : 775,389.45 = 247,319.76 : x
  2. Step 2: Convert to fraction form
    517,261.77/775,389.45 = 247,319.76/x
  3. Step 3: Cross multiply
    517,261.77x = 775,389.45 × 247,319.76
  4. Step 4: Simplify right side
    517,261.77x = 191,769,132,680.53
  5. Step 5: Solve for x
    x = 191,769,132,680.53/517,261.77
  6. Step 6: Final answer
    x = 370,739.04

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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.