Home / 626,720.39-864,884.19-340,240.25

Finding the Fourth Proportional to 626,720.39, 864,884.19 and 340,240.25

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Solution

The fourth proportional to 626,720.39, 864,884.19 and 340,240.25 is: 469,537.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,720.39 : 864,884.19 = 340,240.25 : x
  2. Step 2: Convert to fraction form
    626,720.39/864,884.19 = 340,240.25/x
  3. Step 3: Cross multiply
    626,720.39x = 864,884.19 × 340,240.25
  4. Step 4: Simplify right side
    626,720.39x = 294,268,413,026.65
  5. Step 5: Solve for x
    x = 294,268,413,026.65/626,720.39
  6. Step 6: Final answer
    x = 469,537.00

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.