Home / 638,844.60-881,603.67-366,930.03

Finding the Fourth Proportional to 638,844.60, 881,603.67 and 366,930.03

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Solution

The fourth proportional to 638,844.60, 881,603.67 and 366,930.03 is: 506,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,844.60 : 881,603.67 = 366,930.03 : x
  2. Step 2: Convert to fraction form
    638,844.60/881,603.67 = 366,930.03/x
  3. Step 3: Cross multiply
    638,844.60x = 881,603.67 × 366,930.03
  4. Step 4: Simplify right side
    638,844.60x = 323,486,861,081.21
  5. Step 5: Solve for x
    x = 323,486,861,081.21/638,844.60
  6. Step 6: Final answer
    x = 506,362.36

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1.5x scale

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.