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Finding the Fourth Proportional to 559,977.60, 839,966.40 and 186,000.60

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Solution

The fourth proportional to 559,977.60, 839,966.40 and 186,000.60 is: 279,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,977.60 : 839,966.40 = 186,000.60 : x
  2. Step 2: Convert to fraction form
    559,977.60/839,966.40 = 186,000.60/x
  3. Step 3: Cross multiply
    559,977.60x = 839,966.40 × 186,000.60
  4. Step 4: Simplify right side
    559,977.60x = 156,234,254,379.84
  5. Step 5: Solve for x
    x = 156,234,254,379.84/559,977.60
  6. Step 6: Final answer
    x = 279,000.90

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Double scale
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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.