Home / 615,408.38-849,241.08-386,089.01

Finding the Fourth Proportional to 615,408.38, 849,241.08 and 386,089.01

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Solution

The fourth proportional to 615,408.38, 849,241.08 and 386,089.01 is: 532,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,408.38 : 849,241.08 = 386,089.01 : x
  2. Step 2: Convert to fraction form
    615,408.38/849,241.08 = 386,089.01/x
  3. Step 3: Cross multiply
    615,408.38x = 849,241.08 × 386,089.01
  4. Step 4: Simplify right side
    615,408.38x = 327,882,643,582.33
  5. Step 5: Solve for x
    x = 327,882,643,582.33/615,408.38
  6. Step 6: Final answer
    x = 532,788.73

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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.