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Finding the Fourth Proportional to 352,878.83, 529,262.66 and 293,289.91

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Solution

The fourth proportional to 352,878.83, 529,262.66 and 293,289.91 is: 439,888.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,878.83 : 529,262.66 = 293,289.91 : x
  2. Step 2: Convert to fraction form
    352,878.83/529,262.66 = 293,289.91/x
  3. Step 3: Cross multiply
    352,878.83x = 529,262.66 × 293,289.91
  4. Step 4: Simplify right side
    352,878.83x = 155,227,398,655.18
  5. Step 5: Solve for x
    x = 155,227,398,655.18/352,878.83
  6. Step 6: Final answer
    x = 439,888.67

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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.