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Finding the Fourth Proportional to 369,601.17, 509,953.22 and 216,557.13

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Solution

The fourth proportional to 369,601.17, 509,953.22 and 216,557.13 is: 298,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,601.17 : 509,953.22 = 216,557.13 : x
  2. Step 2: Convert to fraction form
    369,601.17/509,953.22 = 216,557.13/x
  3. Step 3: Cross multiply
    369,601.17x = 509,953.22 × 216,557.13
  4. Step 4: Simplify right side
    369,601.17x = 110,434,003,207.69
  5. Step 5: Solve for x
    x = 110,434,003,207.69/369,601.17
  6. Step 6: Final answer
    x = 298,792.36

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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.