Home / 856,013.94-1,284,031.98-406,778.76

Finding the Fourth Proportional to 856,013.94, 1,284,031.98 and 406,778.76

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Solution

The fourth proportional to 856,013.94, 1,284,031.98 and 406,778.76 is: 610,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,013.94 : 1,284,031.98 = 406,778.76 : x
  2. Step 2: Convert to fraction form
    856,013.94/1,284,031.98 = 406,778.76/x
  3. Step 3: Cross multiply
    856,013.94x = 1,284,031.98 × 406,778.76
  4. Step 4: Simplify right side
    856,013.94x = 522,316,936,624.75
  5. Step 5: Solve for x
    x = 522,316,936,624.75/856,013.94
  6. Step 6: Final answer
    x = 610,173.40

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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.