Home / 563,844.12-778,056.75-318,816.87

Finding the Fourth Proportional to 563,844.12, 778,056.75 and 318,816.87

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Solution

The fourth proportional to 563,844.12, 778,056.75 and 318,816.87 is: 439,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,844.12 : 778,056.75 = 318,816.87 : x
  2. Step 2: Convert to fraction form
    563,844.12/778,056.75 = 318,816.87/x
  3. Step 3: Cross multiply
    563,844.12x = 778,056.75 × 318,816.87
  4. Step 4: Simplify right side
    563,844.12x = 248,057,617,717.37
  5. Step 5: Solve for x
    x = 248,057,617,717.37/563,844.12
  6. Step 6: Final answer
    x = 439,940.06

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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.