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Finding the Fourth Proportional to 875,355.60, 1,312,843.86 and 235,643.52

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Solution

The fourth proportional to 875,355.60, 1,312,843.86 and 235,643.52 is: 353,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,355.60 : 1,312,843.86 = 235,643.52 : x
  2. Step 2: Convert to fraction form
    875,355.60/1,312,843.86 = 235,643.52/x
  3. Step 3: Cross multiply
    875,355.60x = 1,312,843.86 × 235,643.52
  4. Step 4: Simplify right side
    875,355.60x = 309,363,148,380.79
  5. Step 5: Solve for x
    x = 309,363,148,380.79/875,355.60
  6. Step 6: Final answer
    x = 353,414.26

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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.