Home / 886,875.40-1,330,313.10-512,705.80

Finding the Fourth Proportional to 886,875.40, 1,330,313.10 and 512,705.80

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Solution

The fourth proportional to 886,875.40, 1,330,313.10 and 512,705.80 is: 769,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,875.40 : 1,330,313.10 = 512,705.80 : x
  2. Step 2: Convert to fraction form
    886,875.40/1,330,313.10 = 512,705.80/x
  3. Step 3: Cross multiply
    886,875.40x = 1,330,313.10 × 512,705.80
  4. Step 4: Simplify right side
    886,875.40x = 682,059,242,185.98
  5. Step 5: Solve for x
    x = 682,059,242,185.98/886,875.40
  6. Step 6: Final answer
    x = 769,058.70

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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.