Home / 813,650.05-1,123,259.57-631,955.17

Finding the Fourth Proportional to 813,650.05, 1,123,259.57 and 631,955.17

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Solution

The fourth proportional to 813,650.05, 1,123,259.57 and 631,955.17 is: 872,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,650.05 : 1,123,259.57 = 631,955.17 : x
  2. Step 2: Convert to fraction form
    813,650.05/1,123,259.57 = 631,955.17/x
  3. Step 3: Cross multiply
    813,650.05x = 1,123,259.57 × 631,955.17
  4. Step 4: Simplify right side
    813,650.05x = 709,849,692,513.48
  5. Step 5: Solve for x
    x = 709,849,692,513.48/813,650.05
  6. Step 6: Final answer
    x = 872,426.29

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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.