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Finding the Fourth Proportional to 539,389.44, 744,405.12 and 297,724.32

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Solution

The fourth proportional to 539,389.44, 744,405.12 and 297,724.32 is: 410,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,389.44 : 744,405.12 = 297,724.32 : x
  2. Step 2: Convert to fraction form
    539,389.44/744,405.12 = 297,724.32/x
  3. Step 3: Cross multiply
    539,389.44x = 744,405.12 × 297,724.32
  4. Step 4: Simplify right side
    539,389.44x = 221,627,508,156.52
  5. Step 5: Solve for x
    x = 221,627,508,156.52/539,389.44
  6. Step 6: Final answer
    x = 410,885.89

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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.