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Finding the Fourth Proportional to 526,718.99, 726,867 and 284,996.25

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Solution

The fourth proportional to 526,718.99, 726,867 and 284,996.25 is: 393,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,718.99 : 726,867 = 284,996.25 : x
  2. Step 2: Convert to fraction form
    526,718.99/726,867 = 284,996.25/x
  3. Step 3: Cross multiply
    526,718.99x = 726,867 × 284,996.25
  4. Step 4: Simplify right side
    526,718.99x = 207,154,369,248.75
  5. Step 5: Solve for x
    x = 207,154,369,248.75/526,718.99
  6. Step 6: Final answer
    x = 393,292.01

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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.