Home / 648,119.70-972,179.55-293,145.30

Finding the Fourth Proportional to 648,119.70, 972,179.55 and 293,145.30

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Solution

The fourth proportional to 648,119.70, 972,179.55 and 293,145.30 is: 439,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,119.70 : 972,179.55 = 293,145.30 : x
  2. Step 2: Convert to fraction form
    648,119.70/972,179.55 = 293,145.30/x
  3. Step 3: Cross multiply
    648,119.70x = 972,179.55 × 293,145.30
  4. Step 4: Simplify right side
    648,119.70x = 284,989,865,838.62
  5. Step 5: Solve for x
    x = 284,989,865,838.62/648,119.70
  6. Step 6: Final answer
    x = 439,717.95

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Half scale
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Double scale
Find fourth proportional to 648,120.70, 972,181.05 and 293,146.30
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.