Home / 816,506.99-1,126,715.83-453,908.78

Finding the Fourth Proportional to 816,506.99, 1,126,715.83 and 453,908.78

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Solution

The fourth proportional to 816,506.99, 1,126,715.83 and 453,908.78 is: 626,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,506.99 : 1,126,715.83 = 453,908.78 : x
  2. Step 2: Convert to fraction form
    816,506.99/1,126,715.83 = 453,908.78/x
  3. Step 3: Cross multiply
    816,506.99x = 1,126,715.83 × 453,908.78
  4. Step 4: Simplify right side
    816,506.99x = 511,426,207,801.99
  5. Step 5: Solve for x
    x = 511,426,207,801.99/816,506.99
  6. Step 6: Final answer
    x = 626,358.64

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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.