Home / 563,117.92-777,115.24-321,395.60

Finding the Fourth Proportional to 563,117.92, 777,115.24 and 321,395.60

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Solution

The fourth proportional to 563,117.92, 777,115.24 and 321,395.60 is: 443,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,117.92 : 777,115.24 = 321,395.60 : x
  2. Step 2: Convert to fraction form
    563,117.92/777,115.24 = 321,395.60/x
  3. Step 3: Cross multiply
    563,117.92x = 777,115.24 × 321,395.60
  4. Step 4: Simplify right side
    563,117.92x = 249,761,418,828.94
  5. Step 5: Solve for x
    x = 249,761,418,828.94/563,117.92
  6. Step 6: Final answer
    x = 443,533.07

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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.