Home / 816,514.87-1,126,726.69-453,916.65

Finding the Fourth Proportional to 816,514.87, 1,126,726.69 and 453,916.65

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Solution

The fourth proportional to 816,514.87, 1,126,726.69 and 453,916.65 is: 626,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,514.87 : 1,126,726.69 = 453,916.65 : x
  2. Step 2: Convert to fraction form
    816,514.87/1,126,726.69 = 453,916.65/x
  3. Step 3: Cross multiply
    816,514.87x = 1,126,726.69 × 453,916.65
  4. Step 4: Simplify right side
    816,514.87x = 511,440,004,590.39
  5. Step 5: Solve for x
    x = 511,440,004,590.39/816,514.87
  6. Step 6: Final answer
    x = 626,369.49

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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.