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Finding the Fourth Proportional to 606,786.89, 909,889.50 and 286,672.28

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Solution

The fourth proportional to 606,786.89, 909,889.50 and 286,672.28 is: 429,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,786.89 : 909,889.50 = 286,672.28 : x
  2. Step 2: Convert to fraction form
    606,786.89/909,889.50 = 286,672.28/x
  3. Step 3: Cross multiply
    606,786.89x = 909,889.50 × 286,672.28
  4. Step 4: Simplify right side
    606,786.89x = 260,840,092,963.61
  5. Step 5: Solve for x
    x = 260,840,092,963.61/606,786.89
  6. Step 6: Final answer
    x = 429,871.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.