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Finding the Fourth Proportional to 559,441.57, 772,029.45 and 304,792.76

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Solution

The fourth proportional to 559,441.57, 772,029.45 and 304,792.76 is: 420,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,441.57 : 772,029.45 = 304,792.76 : x
  2. Step 2: Convert to fraction form
    559,441.57/772,029.45 = 304,792.76/x
  3. Step 3: Cross multiply
    559,441.57x = 772,029.45 × 304,792.76
  4. Step 4: Simplify right side
    559,441.57x = 235,308,986,866.78
  5. Step 5: Solve for x
    x = 235,308,986,866.78/559,441.57
  6. Step 6: Final answer
    x = 420,614.05

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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.