Home / 558,816.76-771,183.63-395,764.98

Finding the Fourth Proportional to 558,816.76, 771,183.63 and 395,764.98

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Solution

The fourth proportional to 558,816.76, 771,183.63 and 395,764.98 is: 546,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,816.76 : 771,183.63 = 395,764.98 : x
  2. Step 2: Convert to fraction form
    558,816.76/771,183.63 = 395,764.98/x
  3. Step 3: Cross multiply
    558,816.76x = 771,183.63 × 395,764.98
  4. Step 4: Simplify right side
    558,816.76x = 305,207,473,903.28
  5. Step 5: Solve for x
    x = 305,207,473,903.28/558,816.76
  6. Step 6: Final answer
    x = 546,167.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.