Home / 856,577.60-1,284,143.88-540,337.40

Finding the Fourth Proportional to 856,577.60, 1,284,143.88 and 540,337.40

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Solution

The fourth proportional to 856,577.60, 1,284,143.88 and 540,337.40 is: 810,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,577.60 : 1,284,143.88 = 540,337.40 : x
  2. Step 2: Convert to fraction form
    856,577.60/1,284,143.88 = 540,337.40/x
  3. Step 3: Cross multiply
    856,577.60x = 1,284,143.88 × 540,337.40
  4. Step 4: Simplify right side
    856,577.60x = 693,870,965,345.11
  5. Step 5: Solve for x
    x = 693,870,965,345.11/856,577.60
  6. Step 6: Final answer
    x = 810,050.33

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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.