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Finding the Fourth Proportional to 866,999.92, 1,196,378.76 and 540,282.64

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Solution

The fourth proportional to 866,999.92, 1,196,378.76 and 540,282.64 is: 745,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,999.92 : 1,196,378.76 = 540,282.64 : x
  2. Step 2: Convert to fraction form
    866,999.92/1,196,378.76 = 540,282.64/x
  3. Step 3: Cross multiply
    866,999.92x = 1,196,378.76 × 540,282.64
  4. Step 4: Simplify right side
    866,999.92x = 646,382,674,892.73
  5. Step 5: Solve for x
    x = 646,382,674,892.73/866,999.92
  6. Step 6: Final answer
    x = 745,539.49

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1.5x scale

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.