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Finding the Fourth Proportional to 526,788.84, 726,963.06 and 285,066.12

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Solution

The fourth proportional to 526,788.84, 726,963.06 and 285,066.12 is: 393,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,788.84 : 726,963.06 = 285,066.12 : x
  2. Step 2: Convert to fraction form
    526,788.84/726,963.06 = 285,066.12/x
  3. Step 3: Cross multiply
    526,788.84x = 726,963.06 × 285,066.12
  4. Step 4: Simplify right side
    526,788.84x = 207,232,538,897.53
  5. Step 5: Solve for x
    x = 207,232,538,897.53/526,788.84
  6. Step 6: Final answer
    x = 393,388.25

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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.