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Finding the Fourth Proportional to 673,671.44, 929,445.80 and 480,109.64

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Solution

The fourth proportional to 673,671.44, 929,445.80 and 480,109.64 is: 662,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,671.44 : 929,445.80 = 480,109.64 : x
  2. Step 2: Convert to fraction form
    673,671.44/929,445.80 = 480,109.64/x
  3. Step 3: Cross multiply
    673,671.44x = 929,445.80 × 480,109.64
  4. Step 4: Simplify right side
    673,671.44x = 446,235,888,437.51
  5. Step 5: Solve for x
    x = 446,235,888,437.51/673,671.44
  6. Step 6: Final answer
    x = 662,393.95

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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.