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Finding the Fourth Proportional to 1,036,787.64, 1,554,948.18 and 371,939.64

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Solution

The fourth proportional to 1,036,787.64, 1,554,948.18 and 371,939.64 is: 557,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,787.64 : 1,554,948.18 = 371,939.64 : x
  2. Step 2: Convert to fraction form
    1,036,787.64/1,554,948.18 = 371,939.64/x
  3. Step 3: Cross multiply
    1,036,787.64x = 1,554,948.18 × 371,939.64
  4. Step 4: Simplify right side
    1,036,787.64x = 578,346,866,287.86
  5. Step 5: Solve for x
    x = 578,346,866,287.86/1,036,787.64
  6. Step 6: Final answer
    x = 557,825.77

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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.