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Finding the Fourth Proportional to 626,906.76, 865,352.07 and 372,256.14

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Solution

The fourth proportional to 626,906.76, 865,352.07 and 372,256.14 is: 513,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,906.76 : 865,352.07 = 372,256.14 : x
  2. Step 2: Convert to fraction form
    626,906.76/865,352.07 = 372,256.14/x
  3. Step 3: Cross multiply
    626,906.76x = 865,352.07 × 372,256.14
  4. Step 4: Simplify right side
    626,906.76x = 322,132,621,319.21
  5. Step 5: Solve for x
    x = 322,132,621,319.21/626,906.76
  6. Step 6: Final answer
    x = 513,844.55

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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.