Home / 823,355.10-1,136,205.62-455,848.61

Finding the Fourth Proportional to 823,355.10, 1,136,205.62 and 455,848.61

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Solution

The fourth proportional to 823,355.10, 1,136,205.62 and 455,848.61 is: 629,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,355.10 : 1,136,205.62 = 455,848.61 : x
  2. Step 2: Convert to fraction form
    823,355.10/1,136,205.62 = 455,848.61/x
  3. Step 3: Cross multiply
    823,355.10x = 1,136,205.62 × 455,848.61
  4. Step 4: Simplify right side
    823,355.10x = 517,937,746,870.16
  5. Step 5: Solve for x
    x = 517,937,746,870.16/823,355.10
  6. Step 6: Final answer
    x = 629,057.56

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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.