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Finding the Fourth Proportional to 529,266.98, 730,384.49 and 287,551.54

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Solution

The fourth proportional to 529,266.98, 730,384.49 and 287,551.54 is: 396,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,266.98 : 730,384.49 = 287,551.54 : x
  2. Step 2: Convert to fraction form
    529,266.98/730,384.49 = 287,551.54/x
  3. Step 3: Cross multiply
    529,266.98x = 730,384.49 × 287,551.54
  4. Step 4: Simplify right side
    529,266.98x = 210,023,181,239.69
  5. Step 5: Solve for x
    x = 210,023,181,239.69/529,266.98
  6. Step 6: Final answer
    x = 396,818.98

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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.