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Finding the Fourth Proportional to 507,622.90, 761,215.65 and 254,805.70

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Solution

The fourth proportional to 507,622.90, 761,215.65 and 254,805.70 is: 382,098.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,622.90 : 761,215.65 = 254,805.70 : x
  2. Step 2: Convert to fraction form
    507,622.90/761,215.65 = 254,805.70/x
  3. Step 3: Cross multiply
    507,622.90x = 761,215.65 × 254,805.70
  4. Step 4: Simplify right side
    507,622.90x = 193,962,086,549.21
  5. Step 5: Solve for x
    x = 193,962,086,549.21/507,622.90
  6. Step 6: Final answer
    x = 382,098.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.