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Finding the Fourth Proportional to 417,153.76, 575,636.75 and 235,840.52

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Solution

The fourth proportional to 417,153.76, 575,636.75 and 235,840.52 is: 325,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,153.76 : 575,636.75 = 235,840.52 : x
  2. Step 2: Convert to fraction form
    417,153.76/575,636.75 = 235,840.52/x
  3. Step 3: Cross multiply
    417,153.76x = 575,636.75 × 235,840.52
  4. Step 4: Simplify right side
    417,153.76x = 135,758,470,451.11
  5. Step 5: Solve for x
    x = 135,758,470,451.11/417,153.76
  6. Step 6: Final answer
    x = 325,439.88

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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.