Home / 411,981.30-617,971.95-299,132.10

Finding the Fourth Proportional to 411,981.30, 617,971.95 and 299,132.10

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Solution

The fourth proportional to 411,981.30, 617,971.95 and 299,132.10 is: 448,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,981.30 : 617,971.95 = 299,132.10 : x
  2. Step 2: Convert to fraction form
    411,981.30/617,971.95 = 299,132.10/x
  3. Step 3: Cross multiply
    411,981.30x = 617,971.95 × 299,132.10
  4. Step 4: Simplify right side
    411,981.30x = 184,855,247,144.60
  5. Step 5: Solve for x
    x = 184,855,247,144.60/411,981.30
  6. Step 6: Final answer
    x = 448,698.15

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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.