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Finding the Fourth Proportional to 539,528.64, 744,549.56 and 297,811.28

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Solution

The fourth proportional to 539,528.64, 744,549.56 and 297,811.28 is: 410,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,528.64 : 744,549.56 = 297,811.28 : x
  2. Step 2: Convert to fraction form
    539,528.64/744,549.56 = 297,811.28/x
  3. Step 3: Cross multiply
    539,528.64x = 744,549.56 × 297,811.28
  4. Step 4: Simplify right side
    539,528.64x = 221,735,257,487.04
  5. Step 5: Solve for x
    x = 221,735,257,487.04/539,528.64
  6. Step 6: Final answer
    x = 410,979.59

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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.