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Finding the Fourth Proportional to 434,561.20, 650,529.60 and 382,073.20

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Solution

The fourth proportional to 434,561.20, 650,529.60 and 382,073.20 is: 571,956.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,561.20 : 650,529.60 = 382,073.20 : x
  2. Step 2: Convert to fraction form
    434,561.20/650,529.60 = 382,073.20/x
  3. Step 3: Cross multiply
    434,561.20x = 650,529.60 × 382,073.20
  4. Step 4: Simplify right side
    434,561.20x = 248,549,925,966.72
  5. Step 5: Solve for x
    x = 248,549,925,966.72/434,561.20
  6. Step 6: Final answer
    x = 571,956.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.