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Finding the Fourth Proportional to 875,672.86, 1,313,509.30 and 676,284.08

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Solution

The fourth proportional to 875,672.86, 1,313,509.30 and 676,284.08 is: 1,014,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,672.86 : 1,313,509.30 = 676,284.08 : x
  2. Step 2: Convert to fraction form
    875,672.86/1,313,509.30 = 676,284.08/x
  3. Step 3: Cross multiply
    875,672.86x = 1,313,509.30 × 676,284.08
  4. Step 4: Simplify right side
    875,672.86x = 888,305,428,521.94
  5. Step 5: Solve for x
    x = 888,305,428,521.94/875,672.86
  6. Step 6: Final answer
    x = 1,014,426.13

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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.