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Finding the Fourth Proportional to 539,606.78, 744,663.38 and 297,889.48

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Solution

The fourth proportional to 539,606.78, 744,663.38 and 297,889.48 is: 411,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,606.78 : 744,663.38 = 297,889.48 : x
  2. Step 2: Convert to fraction form
    539,606.78/744,663.38 = 297,889.48/x
  3. Step 3: Cross multiply
    539,606.78x = 744,663.38 × 297,889.48
  4. Step 4: Simplify right side
    539,606.78x = 221,827,387,043.24
  5. Step 5: Solve for x
    x = 221,827,387,043.24/539,606.78
  6. Step 6: Final answer
    x = 411,090.81

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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.