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Finding the Fourth Proportional to 573,209.40, 860,154.30 and 218,259.30

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Solution

The fourth proportional to 573,209.40, 860,154.30 and 218,259.30 is: 327,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,209.40 : 860,154.30 = 218,259.30 : x
  2. Step 2: Convert to fraction form
    573,209.40/860,154.30 = 218,259.30/x
  3. Step 3: Cross multiply
    573,209.40x = 860,154.30 × 218,259.30
  4. Step 4: Simplify right side
    573,209.40x = 187,736,675,409.99
  5. Step 5: Solve for x
    x = 187,736,675,409.99/573,209.40
  6. Step 6: Final answer
    x = 327,518.49

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Similar ratio
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1.5x scale

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.