Home / 619,077.60-928,616.40-406,501.20

Finding the Fourth Proportional to 619,077.60, 928,616.40 and 406,501.20

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Solution

The fourth proportional to 619,077.60, 928,616.40 and 406,501.20 is: 609,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,077.60 : 928,616.40 = 406,501.20 : x
  2. Step 2: Convert to fraction form
    619,077.60/928,616.40 = 406,501.20/x
  3. Step 3: Cross multiply
    619,077.60x = 928,616.40 × 406,501.20
  4. Step 4: Simplify right side
    619,077.60x = 377,483,680,939.68
  5. Step 5: Solve for x
    x = 377,483,680,939.68/619,077.60
  6. Step 6: Final answer
    x = 609,751.80

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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.