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Finding the Fourth Proportional to 585,064.20, 877,596.30 and 385,609.80

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Solution

The fourth proportional to 585,064.20, 877,596.30 and 385,609.80 is: 578,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,064.20 : 877,596.30 = 385,609.80 : x
  2. Step 2: Convert to fraction form
    585,064.20/877,596.30 = 385,609.80/x
  3. Step 3: Cross multiply
    585,064.20x = 877,596.30 × 385,609.80
  4. Step 4: Simplify right side
    585,064.20x = 338,409,733,723.74
  5. Step 5: Solve for x
    x = 338,409,733,723.74/585,064.20
  6. Step 6: Final answer
    x = 578,414.70

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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.