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Finding the Fourth Proportional to 517,585.95, 776,132.82 and 180,585.81

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Solution

The fourth proportional to 517,585.95, 776,132.82 and 180,585.81 is: 270,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,585.95 : 776,132.82 = 180,585.81 : x
  2. Step 2: Convert to fraction form
    517,585.95/776,132.82 = 180,585.81/x
  3. Step 3: Cross multiply
    517,585.95x = 776,132.82 × 180,585.81
  4. Step 4: Simplify right side
    517,585.95x = 140,158,573,967.28
  5. Step 5: Solve for x
    x = 140,158,573,967.28/517,585.95
  6. Step 6: Final answer
    x = 270,792.85

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Double scale
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Similar ratio
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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.