Home / 621,819.16-858,090.90-349,902.52

Finding the Fourth Proportional to 621,819.16, 858,090.90 and 349,902.52

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Solution

The fourth proportional to 621,819.16, 858,090.90 and 349,902.52 is: 482,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,819.16 : 858,090.90 = 349,902.52 : x
  2. Step 2: Convert to fraction form
    621,819.16/858,090.90 = 349,902.52/x
  3. Step 3: Cross multiply
    621,819.16x = 858,090.90 × 349,902.52
  4. Step 4: Simplify right side
    621,819.16x = 300,248,168,299.07
  5. Step 5: Solve for x
    x = 300,248,168,299.07/621,819.16
  6. Step 6: Final answer
    x = 482,854.48

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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.