Home / 621,973.59-858,588.39-418,142.73

Finding the Fourth Proportional to 621,973.59, 858,588.39 and 418,142.73

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Solution

The fourth proportional to 621,973.59, 858,588.39 and 418,142.73 is: 577,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,973.59 : 858,588.39 = 418,142.73 : x
  2. Step 2: Convert to fraction form
    621,973.59/858,588.39 = 418,142.73/x
  3. Step 3: Cross multiply
    621,973.59x = 858,588.39 × 418,142.73
  4. Step 4: Simplify right side
    621,973.59x = 359,012,493,340.91
  5. Step 5: Solve for x
    x = 359,012,493,340.91/621,973.59
  6. Step 6: Final answer
    x = 577,215.01

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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.