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Finding the Fourth Proportional to 478,660.02, 660,537.84 and 263,800.02

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Solution

The fourth proportional to 478,660.02, 660,537.84 and 263,800.02 is: 364,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,660.02 : 660,537.84 = 263,800.02 : x
  2. Step 2: Convert to fraction form
    478,660.02/660,537.84 = 263,800.02/x
  3. Step 3: Cross multiply
    478,660.02x = 660,537.84 × 263,800.02
  4. Step 4: Simplify right side
    478,660.02x = 174,249,895,402.76
  5. Step 5: Solve for x
    x = 174,249,895,402.76/478,660.02
  6. Step 6: Final answer
    x = 364,036.87

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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.