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Finding the Fourth Proportional to 480,907.63, 663,917.40 and 360,005.41

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Solution

The fourth proportional to 480,907.63, 663,917.40 and 360,005.41 is: 497,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,907.63 : 663,917.40 = 360,005.41 : x
  2. Step 2: Convert to fraction form
    480,907.63/663,917.40 = 360,005.41/x
  3. Step 3: Cross multiply
    480,907.63x = 663,917.40 × 360,005.41
  4. Step 4: Simplify right side
    480,907.63x = 239,013,850,673.52
  5. Step 5: Solve for x
    x = 239,013,850,673.52/480,907.63
  6. Step 6: Final answer
    x = 497,005.74

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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.