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Finding the Fourth Proportional to 866,846.45, 1,300,527.26 and 417,437.39

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Solution

The fourth proportional to 866,846.45, 1,300,527.26 and 417,437.39 is: 626,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,846.45 : 1,300,527.26 = 417,437.39 : x
  2. Step 2: Convert to fraction form
    866,846.45/1,300,527.26 = 417,437.39/x
  3. Step 3: Cross multiply
    866,846.45x = 1,300,527.26 × 417,437.39
  4. Step 4: Simplify right side
    866,846.45x = 542,888,696,448.43
  5. Step 5: Solve for x
    x = 542,888,696,448.43/866,846.45
  6. Step 6: Final answer
    x = 626,280.12

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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.