Home / 638,968.01-881,761.67-352,488.02

Finding the Fourth Proportional to 638,968.01, 881,761.67 and 352,488.02

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Solution

The fourth proportional to 638,968.01, 881,761.67 and 352,488.02 is: 486,425.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,968.01 : 881,761.67 = 352,488.02 : x
  2. Step 2: Convert to fraction form
    638,968.01/881,761.67 = 352,488.02/x
  3. Step 3: Cross multiply
    638,968.01x = 881,761.67 × 352,488.02
  4. Step 4: Simplify right side
    638,968.01x = 310,810,425,612.16
  5. Step 5: Solve for x
    x = 310,810,425,612.16/638,968.01
  6. Step 6: Final answer
    x = 486,425.64

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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.