Home / 619,125.37-928,688.26-408,714.10

Finding the Fourth Proportional to 619,125.37, 928,688.26 and 408,714.10

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Solution

The fourth proportional to 619,125.37, 928,688.26 and 408,714.10 is: 613,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,125.37 : 928,688.26 = 408,714.10 : x
  2. Step 2: Convert to fraction form
    619,125.37/928,688.26 = 408,714.10/x
  3. Step 3: Cross multiply
    619,125.37x = 928,688.26 × 408,714.10
  4. Step 4: Simplify right side
    619,125.37x = 379,567,986,366.47
  5. Step 5: Solve for x
    x = 379,567,986,366.47/619,125.37
  6. Step 6: Final answer
    x = 613,071.29

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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.