Home / 623,236.45-861,519.18-555,920.59

Finding the Fourth Proportional to 623,236.45, 861,519.18 and 555,920.59

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Solution

The fourth proportional to 623,236.45, 861,519.18 and 555,920.59 is: 768,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,236.45 : 861,519.18 = 555,920.59 : x
  2. Step 2: Convert to fraction form
    623,236.45/861,519.18 = 555,920.59/x
  3. Step 3: Cross multiply
    623,236.45x = 861,519.18 × 555,920.59
  4. Step 4: Simplify right side
    623,236.45x = 478,936,250,841.92
  5. Step 5: Solve for x
    x = 478,936,250,841.92/623,236.45
  6. Step 6: Final answer
    x = 768,466.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.