Home / 418,320.20-578,401.62-365,176.10

Finding the Fourth Proportional to 418,320.20, 578,401.62 and 365,176.10

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Solution

The fourth proportional to 418,320.20, 578,401.62 and 365,176.10 is: 504,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,320.20 : 578,401.62 = 365,176.10 : x
  2. Step 2: Convert to fraction form
    418,320.20/578,401.62 = 365,176.10/x
  3. Step 3: Cross multiply
    418,320.20x = 578,401.62 × 365,176.10
  4. Step 4: Simplify right side
    418,320.20x = 211,218,447,825.28
  5. Step 5: Solve for x
    x = 211,218,447,825.28/418,320.20
  6. Step 6: Final answer
    x = 504,920.51

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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.