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Finding the Fourth Proportional to 334,145.66, 500,021.15 and 289,321.61

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Solution

The fourth proportional to 334,145.66, 500,021.15 and 289,321.61 is: 432,945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,145.66 : 500,021.15 = 289,321.61 : x
  2. Step 2: Convert to fraction form
    334,145.66/500,021.15 = 289,321.61/x
  3. Step 3: Cross multiply
    334,145.66x = 500,021.15 × 289,321.61
  4. Step 4: Simplify right side
    334,145.66x = 144,666,920,205.34
  5. Step 5: Solve for x
    x = 144,666,920,205.34/334,145.66
  6. Step 6: Final answer
    x = 432,945.69

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1.5x scale

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.