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Finding the Fourth Proportional to 385,889.49, 532,056.99 and 283,603.50

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Solution

The fourth proportional to 385,889.49, 532,056.99 and 283,603.50 is: 391,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,889.49 : 532,056.99 = 283,603.50 : x
  2. Step 2: Convert to fraction form
    385,889.49/532,056.99 = 283,603.50/x
  3. Step 3: Cross multiply
    385,889.49x = 532,056.99 × 283,603.50
  4. Step 4: Simplify right side
    385,889.49x = 150,893,224,563.47
  5. Step 5: Solve for x
    x = 150,893,224,563.47/385,889.49
  6. Step 6: Final answer
    x = 391,027.04

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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.