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Finding the Fourth Proportional to 554,089.62, 831,508.10 and 217,088.01

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Solution

The fourth proportional to 554,089.62, 831,508.10 and 217,088.01 is: 325,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,089.62 : 831,508.10 = 217,088.01 : x
  2. Step 2: Convert to fraction form
    554,089.62/831,508.10 = 217,088.01/x
  3. Step 3: Cross multiply
    554,089.62x = 831,508.10 × 217,088.01
  4. Step 4: Simplify right side
    554,089.62x = 180,510,438,456.52
  5. Step 5: Solve for x
    x = 180,510,438,456.52/554,089.62
  6. Step 6: Final answer
    x = 325,778.41

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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.