Home / 865,499.60-1,298,249.40-510,683.60

Finding the Fourth Proportional to 865,499.60, 1,298,249.40 and 510,683.60

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Solution

The fourth proportional to 865,499.60, 1,298,249.40 and 510,683.60 is: 766,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,499.60 : 1,298,249.40 = 510,683.60 : x
  2. Step 2: Convert to fraction form
    865,499.60/1,298,249.40 = 510,683.60/x
  3. Step 3: Cross multiply
    865,499.60x = 1,298,249.40 × 510,683.60
  4. Step 4: Simplify right side
    865,499.60x = 662,994,677,289.84
  5. Step 5: Solve for x
    x = 662,994,677,289.84/865,499.60
  6. Step 6: Final answer
    x = 766,025.40

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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.