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Finding the Fourth Proportional to 1,124.94, 1,686.95 and 466.80

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Solution

The fourth proportional to 1,124.94, 1,686.95 and 466.80 is: 700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.94 : 1,686.95 = 466.80 : x
  2. Step 2: Convert to fraction form
    1,124.94/1,686.95 = 466.80/x
  3. Step 3: Cross multiply
    1,124.94x = 1,686.95 × 466.80
  4. Step 4: Simplify right side
    1,124.94x = 787,465.93
  5. Step 5: Solve for x
    x = 787,465.93/1,124.94
  6. Step 6: Final answer
    x = 700.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.