Home / 687,153.06-949,180.41-572,805.90

Finding the Fourth Proportional to 687,153.06, 949,180.41 and 572,805.90

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Solution

The fourth proportional to 687,153.06, 949,180.41 and 572,805.90 is: 791,230.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,153.06 : 949,180.41 = 572,805.90 : x
  2. Step 2: Convert to fraction form
    687,153.06/949,180.41 = 572,805.90/x
  3. Step 3: Cross multiply
    687,153.06x = 949,180.41 × 572,805.90
  4. Step 4: Simplify right side
    687,153.06x = 543,696,139,012.42
  5. Step 5: Solve for x
    x = 543,696,139,012.42/687,153.06
  6. Step 6: Final answer
    x = 791,230.03

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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.