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Finding the Fourth Proportional to 296,612.79, 409,323.61 and 160,643.63

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Solution

The fourth proportional to 296,612.79, 409,323.61 and 160,643.63 is: 221,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,612.79 : 409,323.61 = 160,643.63 : x
  2. Step 2: Convert to fraction form
    296,612.79/409,323.61 = 160,643.63/x
  3. Step 3: Cross multiply
    296,612.79x = 409,323.61 × 160,643.63
  4. Step 4: Simplify right side
    296,612.79x = 65,755,230,555.10
  5. Step 5: Solve for x
    x = 65,755,230,555.10/296,612.79
  6. Step 6: Final answer
    x = 221,687.10

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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.