Home / 856,129.01-1,284,206.09-406,895.72

Finding the Fourth Proportional to 856,129.01, 1,284,206.09 and 406,895.72

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Solution

The fourth proportional to 856,129.01, 1,284,206.09 and 406,895.72 is: 610,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,129.01 : 1,284,206.09 = 406,895.72 : x
  2. Step 2: Convert to fraction form
    856,129.01/1,284,206.09 = 406,895.72/x
  3. Step 3: Cross multiply
    856,129.01x = 1,284,206.09 × 406,895.72
  4. Step 4: Simplify right side
    856,129.01x = 522,537,953,163.43
  5. Step 5: Solve for x
    x = 522,537,953,163.43/856,129.01
  6. Step 6: Final answer
    x = 610,349.55

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Double scale
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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.