Home / 683,143.76-942,753.12-377,219.36

Finding the Fourth Proportional to 683,143.76, 942,753.12 and 377,219.36

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Solution

The fourth proportional to 683,143.76, 942,753.12 and 377,219.36 is: 520,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,143.76 : 942,753.12 = 377,219.36 : x
  2. Step 2: Convert to fraction form
    683,143.76/942,753.12 = 377,219.36/x
  3. Step 3: Cross multiply
    683,143.76x = 942,753.12 × 377,219.36
  4. Step 4: Simplify right side
    683,143.76x = 355,624,728,564.40
  5. Step 5: Solve for x
    x = 355,624,728,564.40/683,143.76
  6. Step 6: Final answer
    x = 520,570.85

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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.