Home / 579,401.10-869,101.65-540,035.10

Finding the Fourth Proportional to 579,401.10, 869,101.65 and 540,035.10

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Solution

The fourth proportional to 579,401.10, 869,101.65 and 540,035.10 is: 810,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,401.10 : 869,101.65 = 540,035.10 : x
  2. Step 2: Convert to fraction form
    579,401.10/869,101.65 = 540,035.10/x
  3. Step 3: Cross multiply
    579,401.10x = 869,101.65 × 540,035.10
  4. Step 4: Simplify right side
    579,401.10x = 469,345,396,467.92
  5. Step 5: Solve for x
    x = 469,345,396,467.92/579,401.10
  6. Step 6: Final answer
    x = 810,052.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.