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Finding the Fourth Proportional to 306,713.39, 459,845.51 and 144,552.20

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Solution

The fourth proportional to 306,713.39, 459,845.51 and 144,552.20 is: 216,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,713.39 : 459,845.51 = 144,552.20 : x
  2. Step 2: Convert to fraction form
    306,713.39/459,845.51 = 144,552.20/x
  3. Step 3: Cross multiply
    306,713.39x = 459,845.51 × 144,552.20
  4. Step 4: Simplify right side
    306,713.39x = 66,471,677,108.63
  5. Step 5: Solve for x
    x = 66,471,677,108.63/306,713.39
  6. Step 6: Final answer
    x = 216,722.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.