Home / 563,921.13-778,139.19-322,219.37

Finding the Fourth Proportional to 563,921.13, 778,139.19 and 322,219.37

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Solution

The fourth proportional to 563,921.13, 778,139.19 and 322,219.37 is: 444,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,921.13 : 778,139.19 = 322,219.37 : x
  2. Step 2: Convert to fraction form
    563,921.13/778,139.19 = 322,219.37/x
  3. Step 3: Cross multiply
    563,921.13x = 778,139.19 × 322,219.37
  4. Step 4: Simplify right side
    563,921.13x = 250,731,515,683.41
  5. Step 5: Solve for x
    x = 250,731,515,683.41/563,921.13
  6. Step 6: Final answer
    x = 444,621.60

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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.