Home / 816,315.73-1,126,529.19-448,808.40

Finding the Fourth Proportional to 816,315.73, 1,126,529.19 and 448,808.40

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Solution

The fourth proportional to 816,315.73, 1,126,529.19 and 448,808.40 is: 619,363.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,315.73 : 1,126,529.19 = 448,808.40 : x
  2. Step 2: Convert to fraction form
    816,315.73/1,126,529.19 = 448,808.40/x
  3. Step 3: Cross multiply
    816,315.73x = 1,126,529.19 × 448,808.40
  4. Step 4: Simplify right side
    816,315.73x = 505,595,763,317.20
  5. Step 5: Solve for x
    x = 505,595,763,317.20/816,315.73
  6. Step 6: Final answer
    x = 619,363.01

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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.