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Finding the Fourth Proportional to 866,959.60, 1,196,440.86 and 535,889.11

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Solution

The fourth proportional to 866,959.60, 1,196,440.86 and 535,889.11 is: 739,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,959.60 : 1,196,440.86 = 535,889.11 : x
  2. Step 2: Convert to fraction form
    866,959.60/1,196,440.86 = 535,889.11/x
  3. Step 3: Cross multiply
    866,959.60x = 1,196,440.86 × 535,889.11
  4. Step 4: Simplify right side
    866,959.60x = 641,159,627,633.04
  5. Step 5: Solve for x
    x = 641,159,627,633.04/866,959.60
  6. Step 6: Final answer
    x = 739,549.60

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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.