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Finding the Fourth Proportional to 633,302.40, 873,910.20 and 357,643.56

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Solution

The fourth proportional to 633,302.40, 873,910.20 and 357,643.56 is: 493,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,302.40 : 873,910.20 = 357,643.56 : x
  2. Step 2: Convert to fraction form
    633,302.40/873,910.20 = 357,643.56/x
  3. Step 3: Cross multiply
    633,302.40x = 873,910.20 × 357,643.56
  4. Step 4: Simplify right side
    633,302.40x = 312,548,355,048.31
  5. Step 5: Solve for x
    x = 312,548,355,048.31/633,302.40
  6. Step 6: Final answer
    x = 493,521.51

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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.