Home / 686,143.53-946,927.94-414,277.56

Finding the Fourth Proportional to 686,143.53, 946,927.94 and 414,277.56

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Solution

The fourth proportional to 686,143.53, 946,927.94 and 414,277.56 is: 571,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,143.53 : 946,927.94 = 414,277.56 : x
  2. Step 2: Convert to fraction form
    686,143.53/946,927.94 = 414,277.56/x
  3. Step 3: Cross multiply
    686,143.53x = 946,927.94 × 414,277.56
  4. Step 4: Simplify right side
    686,143.53x = 392,290,994,407.64
  5. Step 5: Solve for x
    x = 392,290,994,407.64/686,143.53
  6. Step 6: Final answer
    x = 571,733.14

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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.