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Finding the Fourth Proportional to 609,317.86, 840,857.97 and 341,045.86

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Solution

The fourth proportional to 609,317.86, 840,857.97 and 341,045.86 is: 470,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,317.86 : 840,857.97 = 341,045.86 : x
  2. Step 2: Convert to fraction form
    609,317.86/840,857.97 = 341,045.86/x
  3. Step 3: Cross multiply
    609,317.86x = 840,857.97 × 341,045.86
  4. Step 4: Simplify right side
    609,317.86x = 286,771,129,516.50
  5. Step 5: Solve for x
    x = 286,771,129,516.50/609,317.86
  6. Step 6: Final answer
    x = 470,642.91

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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.