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Finding the Fourth Proportional to 415,293.90, 573,110.92 and 245,526.54

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Solution

The fourth proportional to 415,293.90, 573,110.92 and 245,526.54 is: 338,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,293.90 : 573,110.92 = 245,526.54 : x
  2. Step 2: Convert to fraction form
    415,293.90/573,110.92 = 245,526.54/x
  3. Step 3: Cross multiply
    415,293.90x = 573,110.92 × 245,526.54
  4. Step 4: Simplify right side
    415,293.90x = 140,713,941,223.82
  5. Step 5: Solve for x
    x = 140,713,941,223.82/415,293.90
  6. Step 6: Final answer
    x = 338,829.78

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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.