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Finding the Fourth Proportional to 602,035.20, 830,691.45 and 356,974.56

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Solution

The fourth proportional to 602,035.20, 830,691.45 and 356,974.56 is: 492,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,035.20 : 830,691.45 = 356,974.56 : x
  2. Step 2: Convert to fraction form
    602,035.20/830,691.45 = 356,974.56/x
  3. Step 3: Cross multiply
    602,035.20x = 830,691.45 × 356,974.56
  4. Step 4: Simplify right side
    602,035.20x = 296,535,714,859.51
  5. Step 5: Solve for x
    x = 296,535,714,859.51/602,035.20
  6. Step 6: Final answer
    x = 492,555.44

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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.