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Finding the Fourth Proportional to 867,443, 1,197,810.06 and 545,691.56

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Solution

The fourth proportional to 867,443, 1,197,810.06 and 545,691.56 is: 753,519.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,443 : 1,197,810.06 = 545,691.56 : x
  2. Step 2: Convert to fraction form
    867,443/1,197,810.06 = 545,691.56/x
  3. Step 3: Cross multiply
    867,443x = 1,197,810.06 × 545,691.56
  4. Step 4: Simplify right side
    867,443x = 653,634,840,225.09
  5. Step 5: Solve for x
    x = 653,634,840,225.09/867,443
  6. Step 6: Final answer
    x = 753,519.07

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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.