Home / 816,574.28-1,224,782.21-247,960.30

Finding the Fourth Proportional to 816,574.28, 1,224,782.21 and 247,960.30

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Solution

The fourth proportional to 816,574.28, 1,224,782.21 and 247,960.30 is: 371,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,574.28 : 1,224,782.21 = 247,960.30 : x
  2. Step 2: Convert to fraction form
    816,574.28/1,224,782.21 = 247,960.30/x
  3. Step 3: Cross multiply
    816,574.28x = 1,224,782.21 × 247,960.30
  4. Step 4: Simplify right side
    816,574.28x = 303,697,361,784.21
  5. Step 5: Solve for x
    x = 303,697,361,784.21/816,574.28
  6. Step 6: Final answer
    x = 371,916.40

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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.