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Finding the Fourth Proportional to 402,080.76, 554,884.38 and 232,314.84

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Solution

The fourth proportional to 402,080.76, 554,884.38 and 232,314.84 is: 320,601.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,080.76 : 554,884.38 = 232,314.84 : x
  2. Step 2: Convert to fraction form
    402,080.76/554,884.38 = 232,314.84/x
  3. Step 3: Cross multiply
    402,080.76x = 554,884.38 × 232,314.84
  4. Step 4: Simplify right side
    402,080.76x = 128,907,875,958.20
  5. Step 5: Solve for x
    x = 128,907,875,958.20/402,080.76
  6. Step 6: Final answer
    x = 320,601.95

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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.