Home / 563,134.81-776,935.79-321,247.21

Finding the Fourth Proportional to 563,134.81, 776,935.79 and 321,247.21

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Solution

The fourth proportional to 563,134.81, 776,935.79 and 321,247.21 is: 443,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,134.81 : 776,935.79 = 321,247.21 : x
  2. Step 2: Convert to fraction form
    563,134.81/776,935.79 = 321,247.21/x
  3. Step 3: Cross multiply
    563,134.81x = 776,935.79 × 321,247.21
  4. Step 4: Simplify right side
    563,134.81x = 249,588,453,280.41
  5. Step 5: Solve for x
    x = 249,588,453,280.41/563,134.81
  6. Step 6: Final answer
    x = 443,212.62

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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.