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Finding the Fourth Proportional to 607,283.40, 910,315.48 and 207,650.88

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Solution

The fourth proportional to 607,283.40, 910,315.48 and 207,650.88 is: 311,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,283.40 : 910,315.48 = 207,650.88 : x
  2. Step 2: Convert to fraction form
    607,283.40/910,315.48 = 207,650.88/x
  3. Step 3: Cross multiply
    607,283.40x = 910,315.48 × 207,650.88
  4. Step 4: Simplify right side
    607,283.40x = 189,027,810,499.62
  5. Step 5: Solve for x
    x = 189,027,810,499.62/607,283.40
  6. Step 6: Final answer
    x = 311,267.87

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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.