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Finding the Fourth Proportional to 621,099.34, 857,058.00 and 363,036.78

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Solution

The fourth proportional to 621,099.34, 857,058.00 and 363,036.78 is: 500,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,099.34 : 857,058.00 = 363,036.78 : x
  2. Step 2: Convert to fraction form
    621,099.34/857,058.00 = 363,036.78/x
  3. Step 3: Cross multiply
    621,099.34x = 857,058.00 × 363,036.78
  4. Step 4: Simplify right side
    621,099.34x = 311,143,579,643.48
  5. Step 5: Solve for x
    x = 311,143,579,643.48/621,099.34
  6. Step 6: Final answer
    x = 500,956.22

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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.