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Finding the Fourth Proportional to 486,465.66, 726,504.66 and 414,622.80

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Solution

The fourth proportional to 486,465.66, 726,504.66 and 414,622.80 is: 619,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,465.66 : 726,504.66 = 414,622.80 : x
  2. Step 2: Convert to fraction form
    486,465.66/726,504.66 = 414,622.80/x
  3. Step 3: Cross multiply
    486,465.66x = 726,504.66 × 414,622.80
  4. Step 4: Simplify right side
    486,465.66x = 301,225,396,342.25
  5. Step 5: Solve for x
    x = 301,225,396,342.25/486,465.66
  6. Step 6: Final answer
    x = 619,212.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.