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Finding the Fourth Proportional to 686,159.54, 946,950.02 and 414,293.56

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Solution

The fourth proportional to 686,159.54, 946,950.02 and 414,293.56 is: 571,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,159.54 : 946,950.02 = 414,293.56 : x
  2. Step 2: Convert to fraction form
    686,159.54/946,950.02 = 414,293.56/x
  3. Step 3: Cross multiply
    686,159.54x = 946,950.02 × 414,293.56
  4. Step 4: Simplify right side
    686,159.54x = 392,315,294,927.87
  5. Step 5: Solve for x
    x = 392,315,294,927.87/686,159.54
  6. Step 6: Final answer
    x = 571,755.21

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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.