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Finding the Fourth Proportional to 215,943.90, 301,927.80 and 215,943.90

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Solution

The fourth proportional to 215,943.90, 301,927.80 and 215,943.90 is: 301,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,943.90 : 301,927.80 = 215,943.90 : x
  2. Step 2: Convert to fraction form
    215,943.90/301,927.80 = 215,943.90/x
  3. Step 3: Cross multiply
    215,943.90x = 301,927.80 × 215,943.90
  4. Step 4: Simplify right side
    215,943.90x = 65,199,466,650.42
  5. Step 5: Solve for x
    x = 65,199,466,650.42/215,943.90
  6. Step 6: Final answer
    x = 301,927.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.