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Finding the Fourth Proportional to 554,065.67, 831,570.59 and 217,340.57

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Solution

The fourth proportional to 554,065.67, 831,570.59 and 217,340.57 is: 326,196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,065.67 : 831,570.59 = 217,340.57 : x
  2. Step 2: Convert to fraction form
    554,065.67/831,570.59 = 217,340.57/x
  3. Step 3: Cross multiply
    554,065.67x = 831,570.59 × 217,340.57
  4. Step 4: Simplify right side
    554,065.67x = 180,734,022,411.34
  5. Step 5: Solve for x
    x = 180,734,022,411.34/554,065.67
  6. Step 6: Final answer
    x = 326,196.03

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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.