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Finding the Fourth Proportional to 626,833.28, 865,033.36 and 340,353.36

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Solution

The fourth proportional to 626,833.28, 865,033.36 and 340,353.36 is: 469,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,833.28 : 865,033.36 = 340,353.36 : x
  2. Step 2: Convert to fraction form
    626,833.28/865,033.36 = 340,353.36/x
  3. Step 3: Cross multiply
    626,833.28x = 865,033.36 × 340,353.36
  4. Step 4: Simplify right side
    626,833.28x = 294,417,010,588.09
  5. Step 5: Solve for x
    x = 294,417,010,588.09/626,833.28
  6. Step 6: Final answer
    x = 469,689.50

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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.