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Finding the Fourth Proportional to 540,056.76, 745,284.56 and 298,334.27

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Solution

The fourth proportional to 540,056.76, 745,284.56 and 298,334.27 is: 411,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,056.76 : 745,284.56 = 298,334.27 : x
  2. Step 2: Convert to fraction form
    540,056.76/745,284.56 = 298,334.27/x
  3. Step 3: Cross multiply
    540,056.76x = 745,284.56 × 298,334.27
  4. Step 4: Simplify right side
    540,056.76x = 222,343,925,149.87
  5. Step 5: Solve for x
    x = 222,343,925,149.87/540,056.76
  6. Step 6: Final answer
    x = 411,704.73

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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.