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Finding the Fourth Proportional to 591,754.80, 887,632.20 and 339,812.40

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Solution

The fourth proportional to 591,754.80, 887,632.20 and 339,812.40 is: 509,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,754.80 : 887,632.20 = 339,812.40 : x
  2. Step 2: Convert to fraction form
    591,754.80/887,632.20 = 339,812.40/x
  3. Step 3: Cross multiply
    591,754.80x = 887,632.20 × 339,812.40
  4. Step 4: Simplify right side
    591,754.80x = 301,628,428,199.28
  5. Step 5: Solve for x
    x = 301,628,428,199.28/591,754.80
  6. Step 6: Final answer
    x = 509,718.60

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