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Finding the Fourth Proportional to 1,325,070.02, 1,828,641.65 and 744,395.73

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Solution

The fourth proportional to 1,325,070.02, 1,828,641.65 and 744,395.73 is: 1,027,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,070.02 : 1,828,641.65 = 744,395.73 : x
  2. Step 2: Convert to fraction form
    1,325,070.02/1,828,641.65 = 744,395.73/x
  3. Step 3: Cross multiply
    1,325,070.02x = 1,828,641.65 × 744,395.73
  4. Step 4: Simplify right side
    1,325,070.02x = 1,361,233,032,238.18
  5. Step 5: Solve for x
    x = 1,361,233,032,238.18/1,325,070.02
  6. Step 6: Final answer
    x = 1,027,291.40

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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.