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Finding the Fourth Proportional to 673,887.61, 929,575.07 and 435,423.61

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Solution

The fourth proportional to 673,887.61, 929,575.07 and 435,423.61 is: 600,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,887.61 : 929,575.07 = 435,423.61 : x
  2. Step 2: Convert to fraction form
    673,887.61/929,575.07 = 435,423.61/x
  3. Step 3: Cross multiply
    673,887.61x = 929,575.07 × 435,423.61
  4. Step 4: Simplify right side
    673,887.61x = 404,758,930,568.29
  5. Step 5: Solve for x
    x = 404,758,930,568.29/673,887.61
  6. Step 6: Final answer
    x = 600,632.69

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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.