Home / 540,023.90-745,218.55-298,301.27

Finding the Fourth Proportional to 540,023.90, 745,218.55 and 298,301.27

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Solution

The fourth proportional to 540,023.90, 745,218.55 and 298,301.27 is: 411,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,023.90 : 745,218.55 = 298,301.27 : x
  2. Step 2: Convert to fraction form
    540,023.90/745,218.55 = 298,301.27/x
  3. Step 3: Cross multiply
    540,023.90x = 745,218.55 × 298,301.27
  4. Step 4: Simplify right side
    540,023.90x = 222,299,638,401.05
  5. Step 5: Solve for x
    x = 222,299,638,401.05/540,023.90
  6. Step 6: Final answer
    x = 411,647.78

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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.