Home / 621,975.10-858,590.46-418,144.24

Finding the Fourth Proportional to 621,975.10, 858,590.46 and 418,144.24

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Solution

The fourth proportional to 621,975.10, 858,590.46 and 418,144.24 is: 577,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,975.10 : 858,590.46 = 418,144.24 : x
  2. Step 2: Convert to fraction form
    621,975.10/858,590.46 = 418,144.24/x
  3. Step 3: Cross multiply
    621,975.10x = 858,590.46 × 418,144.24
  4. Step 4: Simplify right side
    621,975.10x = 359,014,655,367.95
  5. Step 5: Solve for x
    x = 359,014,655,367.95/621,975.10
  6. Step 6: Final answer
    x = 577,217.09

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Double scale
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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.