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Finding the Fourth Proportional to 369,226.90, 509,659.62 and 216,314.26

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Solution

The fourth proportional to 369,226.90, 509,659.62 and 216,314.26 is: 298,587.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,226.90 : 509,659.62 = 216,314.26 : x
  2. Step 2: Convert to fraction form
    369,226.90/509,659.62 = 216,314.26/x
  3. Step 3: Cross multiply
    369,226.90x = 509,659.62 × 216,314.26
  4. Step 4: Simplify right side
    369,226.90x = 110,246,643,552.18
  5. Step 5: Solve for x
    x = 110,246,643,552.18/369,226.90
  6. Step 6: Final answer
    x = 298,587.79

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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.