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Finding the Fourth Proportional to 1,872,681.66, 2,584,282.32 and 1,013,223.06

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Solution

The fourth proportional to 1,872,681.66, 2,584,282.32 and 1,013,223.06 is: 1,398,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,681.66 : 2,584,282.32 = 1,013,223.06 : x
  2. Step 2: Convert to fraction form
    1,872,681.66/2,584,282.32 = 1,013,223.06/x
  3. Step 3: Cross multiply
    1,872,681.66x = 2,584,282.32 × 1,013,223.06
  4. Step 4: Simplify right side
    1,872,681.66x = 2,618,454,440,174.30
  5. Step 5: Solve for x
    x = 2,618,454,440,174.30/1,872,681.66
  6. Step 6: Final answer
    x = 1,398,237.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.