Home / 648,069.70-972,104.55-579,835.30

Finding the Fourth Proportional to 648,069.70, 972,104.55 and 579,835.30

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Solution

The fourth proportional to 648,069.70, 972,104.55 and 579,835.30 is: 869,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,069.70 : 972,104.55 = 579,835.30 : x
  2. Step 2: Convert to fraction form
    648,069.70/972,104.55 = 579,835.30/x
  3. Step 3: Cross multiply
    648,069.70x = 972,104.55 × 579,835.30
  4. Step 4: Simplify right side
    648,069.70x = 563,660,533,380.62
  5. Step 5: Solve for x
    x = 563,660,533,380.62/648,069.70
  6. Step 6: Final answer
    x = 869,752.95

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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.