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Finding the Fourth Proportional to 554,264.66, 831,398.74 and 154,902.80

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Solution

The fourth proportional to 554,264.66, 831,398.74 and 154,902.80 is: 232,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,264.66 : 831,398.74 = 154,902.80 : x
  2. Step 2: Convert to fraction form
    554,264.66/831,398.74 = 154,902.80/x
  3. Step 3: Cross multiply
    554,264.66x = 831,398.74 × 154,902.80
  4. Step 4: Simplify right side
    554,264.66x = 128,785,992,742.47
  5. Step 5: Solve for x
    x = 128,785,992,742.47/554,264.66
  6. Step 6: Final answer
    x = 232,354.69

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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.