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Finding the Fourth Proportional to 578,056.60, 866,501.70 and 262,739.80

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Solution

The fourth proportional to 578,056.60, 866,501.70 and 262,739.80 is: 393,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,056.60 : 866,501.70 = 262,739.80 : x
  2. Step 2: Convert to fraction form
    578,056.60/866,501.70 = 262,739.80/x
  3. Step 3: Cross multiply
    578,056.60x = 866,501.70 × 262,739.80
  4. Step 4: Simplify right side
    578,056.60x = 227,664,483,357.66
  5. Step 5: Solve for x
    x = 227,664,483,357.66/578,056.60
  6. Step 6: Final answer
    x = 393,844.62

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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.