Home / 858,881.70-1,288,322.55-540,017.10

Finding the Fourth Proportional to 858,881.70, 1,288,322.55 and 540,017.10

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Solution

The fourth proportional to 858,881.70, 1,288,322.55 and 540,017.10 is: 810,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,881.70 : 1,288,322.55 = 540,017.10 : x
  2. Step 2: Convert to fraction form
    858,881.70/1,288,322.55 = 540,017.10/x
  3. Step 3: Cross multiply
    858,881.70x = 1,288,322.55 × 540,017.10
  4. Step 4: Simplify right side
    858,881.70x = 695,716,207,315.61
  5. Step 5: Solve for x
    x = 695,716,207,315.61/858,881.70
  6. Step 6: Final answer
    x = 810,025.65

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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.