Home / 836,015.40-1,254,023.10-623,125.80

Finding the Fourth Proportional to 836,015.40, 1,254,023.10 and 623,125.80

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Solution

The fourth proportional to 836,015.40, 1,254,023.10 and 623,125.80 is: 934,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,015.40 : 1,254,023.10 = 623,125.80 : x
  2. Step 2: Convert to fraction form
    836,015.40/1,254,023.10 = 623,125.80/x
  3. Step 3: Cross multiply
    836,015.40x = 1,254,023.10 × 623,125.80
  4. Step 4: Simplify right side
    836,015.40x = 781,414,147,405.98
  5. Step 5: Solve for x
    x = 781,414,147,405.98/836,015.40
  6. Step 6: Final answer
    x = 934,688.70

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Half scale
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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.