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Finding the Fourth Proportional to 592,811.70, 889,217.55 and 394,437.30

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Solution

The fourth proportional to 592,811.70, 889,217.55 and 394,437.30 is: 591,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,811.70 : 889,217.55 = 394,437.30 : x
  2. Step 2: Convert to fraction form
    592,811.70/889,217.55 = 394,437.30/x
  3. Step 3: Cross multiply
    592,811.70x = 889,217.55 × 394,437.30
  4. Step 4: Simplify right side
    592,811.70x = 350,740,569,534.62
  5. Step 5: Solve for x
    x = 350,740,569,534.62/592,811.70
  6. Step 6: Final answer
    x = 591,655.95

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Half scale
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Double scale
Find fourth proportional to 592,812.70, 889,219.05 and 394,438.30
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.