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Finding the Fourth Proportional to 554,415.06, 831,712.35 and 217,272.90

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Solution

The fourth proportional to 554,415.06, 831,712.35 and 217,272.90 is: 325,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,415.06 : 831,712.35 = 217,272.90 : x
  2. Step 2: Convert to fraction form
    554,415.06/831,712.35 = 217,272.90/x
  3. Step 3: Cross multiply
    554,415.06x = 831,712.35 × 217,272.90
  4. Step 4: Simplify right side
    554,415.06x = 180,708,554,250.32
  5. Step 5: Solve for x
    x = 180,708,554,250.32/554,415.06
  6. Step 6: Final answer
    x = 325,944.53

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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.