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Finding the Fourth Proportional to 384,390.02, 529,910.14 and 298,196.93

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Solution

The fourth proportional to 384,390.02, 529,910.14 and 298,196.93 is: 411,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,390.02 : 529,910.14 = 298,196.93 : x
  2. Step 2: Convert to fraction form
    384,390.02/529,910.14 = 298,196.93/x
  3. Step 3: Cross multiply
    384,390.02x = 529,910.14 × 298,196.93
  4. Step 4: Simplify right side
    384,390.02x = 158,017,576,923.87
  5. Step 5: Solve for x
    x = 158,017,576,923.87/384,390.02
  6. Step 6: Final answer
    x = 411,086.58

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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.