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Finding the Fourth Proportional to 529,018.40, 793,371.84 and 288,856.64

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Solution

The fourth proportional to 529,018.40, 793,371.84 and 288,856.64 is: 433,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,018.40 : 793,371.84 = 288,856.64 : x
  2. Step 2: Convert to fraction form
    529,018.40/793,371.84 = 288,856.64/x
  3. Step 3: Cross multiply
    529,018.40x = 793,371.84 × 288,856.64
  4. Step 4: Simplify right side
    529,018.40x = 229,170,723,973.02
  5. Step 5: Solve for x
    x = 229,170,723,973.02/529,018.40
  6. Step 6: Final answer
    x = 433,199.91

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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.