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Finding the Fourth Proportional to 414,586.71, 618,852.13 and 355,800.15

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Solution

The fourth proportional to 414,586.71, 618,852.13 and 355,800.15 is: 531,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,586.71 : 618,852.13 = 355,800.15 : x
  2. Step 2: Convert to fraction form
    414,586.71/618,852.13 = 355,800.15/x
  3. Step 3: Cross multiply
    414,586.71x = 618,852.13 × 355,800.15
  4. Step 4: Simplify right side
    414,586.71x = 220,187,679,792.32
  5. Step 5: Solve for x
    x = 220,187,679,792.32/414,586.71
  6. Step 6: Final answer
    x = 531,101.64

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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.