Home / 411,427.10-617,140.65-115,939.10

Finding the Fourth Proportional to 411,427.10, 617,140.65 and 115,939.10

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Solution

The fourth proportional to 411,427.10, 617,140.65 and 115,939.10 is: 173,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,427.10 : 617,140.65 = 115,939.10 : x
  2. Step 2: Convert to fraction form
    411,427.10/617,140.65 = 115,939.10/x
  3. Step 3: Cross multiply
    411,427.10x = 617,140.65 × 115,939.10
  4. Step 4: Simplify right side
    411,427.10x = 71,550,731,534.42
  5. Step 5: Solve for x
    x = 71,550,731,534.42/411,427.10
  6. Step 6: Final answer
    x = 173,908.65

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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.