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Finding the Fourth Proportional to 216,879.30, 304,253.10 and 216,879.30

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Solution

The fourth proportional to 216,879.30, 304,253.10 and 216,879.30 is: 304,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,879.30 : 304,253.10 = 216,879.30 : x
  2. Step 2: Convert to fraction form
    216,879.30/304,253.10 = 216,879.30/x
  3. Step 3: Cross multiply
    216,879.30x = 304,253.10 × 216,879.30
  4. Step 4: Simplify right side
    216,879.30x = 65,986,199,350.83
  5. Step 5: Solve for x
    x = 65,986,199,350.83/216,879.30
  6. Step 6: Final answer
    x = 304,253.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.