Home / 420,296.04-626,742.45-416,505.24

Finding the Fourth Proportional to 420,296.04, 626,742.45 and 416,505.24

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Solution

The fourth proportional to 420,296.04, 626,742.45 and 416,505.24 is: 621,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,296.04 : 626,742.45 = 416,505.24 : x
  2. Step 2: Convert to fraction form
    420,296.04/626,742.45 = 416,505.24/x
  3. Step 3: Cross multiply
    420,296.04x = 626,742.45 × 416,505.24
  4. Step 4: Simplify right side
    420,296.04x = 261,041,514,555.44
  5. Step 5: Solve for x
    x = 261,041,514,555.44/420,296.04
  6. Step 6: Final answer
    x = 621,089.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.