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Finding the Fourth Proportional to 866,265.86, 1,299,620.23 and 333,643.88

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Solution

The fourth proportional to 866,265.86, 1,299,620.23 and 333,643.88 is: 500,551.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,265.86 : 1,299,620.23 = 333,643.88 : x
  2. Step 2: Convert to fraction form
    866,265.86/1,299,620.23 = 333,643.88/x
  3. Step 3: Cross multiply
    866,265.86x = 1,299,620.23 × 333,643.88
  4. Step 4: Simplify right side
    866,265.86x = 433,610,338,478.63
  5. Step 5: Solve for x
    x = 433,610,338,478.63/866,265.86
  6. Step 6: Final answer
    x = 500,551.11

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1.5x scale

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.