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Finding the Fourth Proportional to 1,203,646.83, 1,804,475.15 and 938,582.43

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Solution

The fourth proportional to 1,203,646.83, 1,804,475.15 and 938,582.43 is: 1,407,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,646.83 : 1,804,475.15 = 938,582.43 : x
  2. Step 2: Convert to fraction form
    1,203,646.83/1,804,475.15 = 938,582.43/x
  3. Step 3: Cross multiply
    1,203,646.83x = 1,804,475.15 × 938,582.43
  4. Step 4: Simplify right side
    1,203,646.83x = 1,693,648,671,161.61
  5. Step 5: Solve for x
    x = 1,693,648,671,161.61/1,203,646.83
  6. Step 6: Final answer
    x = 1,407,097.69

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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.