Home / 626,285.15-864,272.44-339,805.16

Finding the Fourth Proportional to 626,285.15, 864,272.44 and 339,805.16

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Solution

The fourth proportional to 626,285.15, 864,272.44 and 339,805.16 is: 468,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,285.15 : 864,272.44 = 339,805.16 : x
  2. Step 2: Convert to fraction form
    626,285.15/864,272.44 = 339,805.16/x
  3. Step 3: Cross multiply
    626,285.15x = 864,272.44 × 339,805.16
  4. Step 4: Simplify right side
    626,285.15x = 293,684,237,343.23
  5. Step 5: Solve for x
    x = 293,684,237,343.23/626,285.15
  6. Step 6: Final answer
    x = 468,930.54

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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.