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Finding the Fourth Proportional to 876,104.64, 1,209,025.44 and 473,696.64

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Solution

The fourth proportional to 876,104.64, 1,209,025.44 and 473,696.64 is: 653,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,104.64 : 1,209,025.44 = 473,696.64 : x
  2. Step 2: Convert to fraction form
    876,104.64/1,209,025.44 = 473,696.64/x
  3. Step 3: Cross multiply
    876,104.64x = 1,209,025.44 × 473,696.64
  4. Step 4: Simplify right side
    876,104.64x = 572,711,288,602.52
  5. Step 5: Solve for x
    x = 572,711,288,602.52/876,104.64
  6. Step 6: Final answer
    x = 653,701.92

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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.