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Finding the Fourth Proportional to 674,517.84, 931,268.64 and 432,904.56

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Solution

The fourth proportional to 674,517.84, 931,268.64 and 432,904.56 is: 597,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,517.84 : 931,268.64 = 432,904.56 : x
  2. Step 2: Convert to fraction form
    674,517.84/931,268.64 = 432,904.56/x
  3. Step 3: Cross multiply
    674,517.84x = 931,268.64 × 432,904.56
  4. Step 4: Simplify right side
    674,517.84x = 403,150,440,841.00
  5. Step 5: Solve for x
    x = 403,150,440,841.00/674,517.84
  6. Step 6: Final answer
    x = 597,686.85

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Double scale
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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.