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Finding the Fourth Proportional to 670,586.22, 925,390.53 and 368,780.22

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Solution

The fourth proportional to 670,586.22, 925,390.53 and 368,780.22 is: 508,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,586.22 : 925,390.53 = 368,780.22 : x
  2. Step 2: Convert to fraction form
    670,586.22/925,390.53 = 368,780.22/x
  3. Step 3: Cross multiply
    670,586.22x = 925,390.53 × 368,780.22
  4. Step 4: Simplify right side
    670,586.22x = 341,265,723,239.32
  5. Step 5: Solve for x
    x = 341,265,723,239.32/670,586.22
  6. Step 6: Final answer
    x = 508,906.56

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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.