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Finding the Fourth Proportional to 417,943.32, 576,768.65 and 236,650.47

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Solution

The fourth proportional to 417,943.32, 576,768.65 and 236,650.47 is: 326,581.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,943.32 : 576,768.65 = 236,650.47 : x
  2. Step 2: Convert to fraction form
    417,943.32/576,768.65 = 236,650.47/x
  3. Step 3: Cross multiply
    417,943.32x = 576,768.65 × 236,650.47
  4. Step 4: Simplify right side
    417,943.32x = 136,492,570,920.51
  5. Step 5: Solve for x
    x = 136,492,570,920.51/417,943.32
  6. Step 6: Final answer
    x = 326,581.53

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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.