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Finding the Fourth Proportional to 526,784.84, 726,957.54 and 285,062.12

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Solution

The fourth proportional to 526,784.84, 726,957.54 and 285,062.12 is: 393,382.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,784.84 : 726,957.54 = 285,062.12 : x
  2. Step 2: Convert to fraction form
    526,784.84/726,957.54 = 285,062.12/x
  3. Step 3: Cross multiply
    526,784.84x = 726,957.54 × 285,062.12
  4. Step 4: Simplify right side
    526,784.84x = 207,228,057,502.39
  5. Step 5: Solve for x
    x = 207,228,057,502.39/526,784.84
  6. Step 6: Final answer
    x = 393,382.73

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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.