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Finding the Fourth Proportional to 517,647.23, 776,657.69 and 180,737.51

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Solution

The fourth proportional to 517,647.23, 776,657.69 and 180,737.51 is: 271,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,647.23 : 776,657.69 = 180,737.51 : x
  2. Step 2: Convert to fraction form
    517,647.23/776,657.69 = 180,737.51/x
  3. Step 3: Cross multiply
    517,647.23x = 776,657.69 × 180,737.51
  4. Step 4: Simplify right side
    517,647.23x = 140,371,179,170.76
  5. Step 5: Solve for x
    x = 140,371,179,170.76/517,647.23
  6. Step 6: Final answer
    x = 271,171.50

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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.