Home / 563,637.20-777,803.24-321,914.77

Finding the Fourth Proportional to 563,637.20, 777,803.24 and 321,914.77

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Solution

The fourth proportional to 563,637.20, 777,803.24 and 321,914.77 is: 444,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,637.20 : 777,803.24 = 321,914.77 : x
  2. Step 2: Convert to fraction form
    563,637.20/777,803.24 = 321,914.77/x
  3. Step 3: Cross multiply
    563,637.20x = 777,803.24 × 321,914.77
  4. Step 4: Simplify right side
    563,637.20x = 250,386,349,970.13
  5. Step 5: Solve for x
    x = 250,386,349,970.13/563,637.20
  6. Step 6: Final answer
    x = 444,233.19

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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.