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Finding the Fourth Proportional to 526,595.90, 726,700.76 and 284,878.44

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Solution

The fourth proportional to 526,595.90, 726,700.76 and 284,878.44 is: 393,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,595.90 : 726,700.76 = 284,878.44 : x
  2. Step 2: Convert to fraction form
    526,595.90/726,700.76 = 284,878.44/x
  3. Step 3: Cross multiply
    526,595.90x = 726,700.76 × 284,878.44
  4. Step 4: Simplify right side
    526,595.90x = 207,021,378,855.61
  5. Step 5: Solve for x
    x = 207,021,378,855.61/526,595.90
  6. Step 6: Final answer
    x = 393,131.39

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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.