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Finding the Fourth Proportional to 460,581.60, 691,390.80 and 355,864.80

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Solution

The fourth proportional to 460,581.60, 691,390.80 and 355,864.80 is: 534,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,581.60 : 691,390.80 = 355,864.80 : x
  2. Step 2: Convert to fraction form
    460,581.60/691,390.80 = 355,864.80/x
  3. Step 3: Cross multiply
    460,581.60x = 691,390.80 × 355,864.80
  4. Step 4: Simplify right side
    460,581.60x = 246,041,648,763.84
  5. Step 5: Solve for x
    x = 246,041,648,763.84/460,581.60
  6. Step 6: Final answer
    x = 534,197.74

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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.