Home / 386,386.56-533,442.24-243,269.28

Finding the Fourth Proportional to 386,386.56, 533,442.24 and 243,269.28

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Solution

The fourth proportional to 386,386.56, 533,442.24 and 243,269.28 is: 335,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,386.56 : 533,442.24 = 243,269.28 : x
  2. Step 2: Convert to fraction form
    386,386.56/533,442.24 = 243,269.28/x
  3. Step 3: Cross multiply
    386,386.56x = 533,442.24 × 243,269.28
  4. Step 4: Simplify right side
    386,386.56x = 129,770,109,646.39
  5. Step 5: Solve for x
    x = 129,770,109,646.39/386,386.56
  6. Step 6: Final answer
    x = 335,855.65

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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.