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Finding the Fourth Proportional to 369,464.15, 509,866.19 and 216,465.73

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Solution

The fourth proportional to 369,464.15, 509,866.19 and 216,465.73 is: 298,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,464.15 : 509,866.19 = 216,465.73 : x
  2. Step 2: Convert to fraction form
    369,464.15/509,866.19 = 216,465.73/x
  3. Step 3: Cross multiply
    369,464.15x = 509,866.19 × 216,465.73
  4. Step 4: Simplify right side
    369,464.15x = 110,368,557,020.67
  5. Step 5: Solve for x
    x = 110,368,557,020.67/369,464.15
  6. Step 6: Final answer
    x = 298,726.03

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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.