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Finding the Fourth Proportional to 1,872,461.02, 2,584,062.66 and 1,056,863.20

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Solution

The fourth proportional to 1,872,461.02, 2,584,062.66 and 1,056,863.20 is: 1,458,508.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,461.02 : 2,584,062.66 = 1,056,863.20 : x
  2. Step 2: Convert to fraction form
    1,872,461.02/2,584,062.66 = 1,056,863.20/x
  3. Step 3: Cross multiply
    1,872,461.02x = 2,584,062.66 × 1,056,863.20
  4. Step 4: Simplify right side
    1,872,461.02x = 2,731,000,731,848.11
  5. Step 5: Solve for x
    x = 2,731,000,731,848.11/1,872,461.02
  6. Step 6: Final answer
    x = 1,458,508.72

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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.