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Finding the Fourth Proportional to 559,881.40, 839,822.10 and 185,904.40

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Solution

The fourth proportional to 559,881.40, 839,822.10 and 185,904.40 is: 278,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,881.40 : 839,822.10 = 185,904.40 : x
  2. Step 2: Convert to fraction form
    559,881.40/839,822.10 = 185,904.40/x
  3. Step 3: Cross multiply
    559,881.40x = 839,822.10 × 185,904.40
  4. Step 4: Simplify right side
    559,881.40x = 156,126,623,607.24
  5. Step 5: Solve for x
    x = 156,126,623,607.24/559,881.40
  6. Step 6: Final answer
    x = 278,856.60

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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.