Home / 563,106.03-776,896.21-321,218.36

Finding the Fourth Proportional to 563,106.03, 776,896.21 and 321,218.36

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Solution

The fourth proportional to 563,106.03, 776,896.21 and 321,218.36 is: 443,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,106.03 : 776,896.21 = 321,218.36 : x
  2. Step 2: Convert to fraction form
    563,106.03/776,896.21 = 321,218.36/x
  3. Step 3: Cross multiply
    563,106.03x = 776,896.21 × 321,218.36
  4. Step 4: Simplify right side
    563,106.03x = 249,553,325,896.82
  5. Step 5: Solve for x
    x = 249,553,325,896.82/563,106.03
  6. Step 6: Final answer
    x = 443,172.89

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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.