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Finding the Fourth Proportional to 611,182.90, 917,102.40 and 256,232.80

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Solution

The fourth proportional to 611,182.90, 917,102.40 and 256,232.80 is: 384,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,182.90 : 917,102.40 = 256,232.80 : x
  2. Step 2: Convert to fraction form
    611,182.90/917,102.40 = 256,232.80/x
  3. Step 3: Cross multiply
    611,182.90x = 917,102.40 × 256,232.80
  4. Step 4: Simplify right side
    611,182.90x = 234,991,715,838.72
  5. Step 5: Solve for x
    x = 234,991,715,838.72/611,182.90
  6. Step 6: Final answer
    x = 384,486.73

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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.