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Finding the Fourth Proportional to 815,602.10, 1,125,493.65 and 453,049.46

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Solution

The fourth proportional to 815,602.10, 1,125,493.65 and 453,049.46 is: 625,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,602.10 : 1,125,493.65 = 453,049.46 : x
  2. Step 2: Convert to fraction form
    815,602.10/1,125,493.65 = 453,049.46/x
  3. Step 3: Cross multiply
    815,602.10x = 1,125,493.65 × 453,049.46
  4. Step 4: Simplify right side
    815,602.10x = 509,904,290,365.93
  5. Step 5: Solve for x
    x = 509,904,290,365.93/815,602.10
  6. Step 6: Final answer
    x = 625,187.56

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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.