Home / 554,800-831,464.29-284,917.23

Finding the Fourth Proportional to 554,800, 831,464.29 and 284,917.23

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Solution

The fourth proportional to 554,800, 831,464.29 and 284,917.23 is: 426,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,800 : 831,464.29 = 284,917.23 : x
  2. Step 2: Convert to fraction form
    554,800/831,464.29 = 284,917.23/x
  3. Step 3: Cross multiply
    554,800x = 831,464.29 × 284,917.23
  4. Step 4: Simplify right side
    554,800x = 236,898,498,193.40
  5. Step 5: Solve for x
    x = 236,898,498,193.40/554,800
  6. Step 6: Final answer
    x = 426,998.01

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1.5x scale

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.