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Finding the Fourth Proportional to 554,434.20, 831,651.30 and 532,661.40

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Solution

The fourth proportional to 554,434.20, 831,651.30 and 532,661.40 is: 798,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,434.20 : 831,651.30 = 532,661.40 : x
  2. Step 2: Convert to fraction form
    554,434.20/831,651.30 = 532,661.40/x
  3. Step 3: Cross multiply
    554,434.20x = 831,651.30 × 532,661.40
  4. Step 4: Simplify right side
    554,434.20x = 442,988,545,769.82
  5. Step 5: Solve for x
    x = 442,988,545,769.82/554,434.20
  6. Step 6: Final answer
    x = 798,992.10

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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.