Home / 743,149.40-1,114,724.10-519,200.60

Finding the Fourth Proportional to 743,149.40, 1,114,724.10 and 519,200.60

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Solution

The fourth proportional to 743,149.40, 1,114,724.10 and 519,200.60 is: 778,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,149.40 : 1,114,724.10 = 519,200.60 : x
  2. Step 2: Convert to fraction form
    743,149.40/1,114,724.10 = 519,200.60/x
  3. Step 3: Cross multiply
    743,149.40x = 1,114,724.10 × 519,200.60
  4. Step 4: Simplify right side
    743,149.40x = 578,765,421,554.46
  5. Step 5: Solve for x
    x = 578,765,421,554.46/743,149.40
  6. Step 6: Final answer
    x = 778,800.90

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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.