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Finding the Fourth Proportional to 539,598.36, 744,735.78 and 515,682.84

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Solution

The fourth proportional to 539,598.36, 744,735.78 and 515,682.84 is: 711,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,598.36 : 744,735.78 = 515,682.84 : x
  2. Step 2: Convert to fraction form
    539,598.36/744,735.78 = 515,682.84/x
  3. Step 3: Cross multiply
    539,598.36x = 744,735.78 × 515,682.84
  4. Step 4: Simplify right side
    539,598.36x = 384,047,462,080.02
  5. Step 5: Solve for x
    x = 384,047,462,080.02/539,598.36
  6. Step 6: Final answer
    x = 711,728.37

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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.