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Finding the Fourth Proportional to 343,069.86, 514,396.42 and 153,494.93

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Solution

The fourth proportional to 343,069.86, 514,396.42 and 153,494.93 is: 230,149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,069.86 : 514,396.42 = 153,494.93 : x
  2. Step 2: Convert to fraction form
    343,069.86/514,396.42 = 153,494.93/x
  3. Step 3: Cross multiply
    343,069.86x = 514,396.42 × 153,494.93
  4. Step 4: Simplify right side
    343,069.86x = 78,957,239,140.69
  5. Step 5: Solve for x
    x = 78,957,239,140.69/343,069.86
  6. Step 6: Final answer
    x = 230,149.16

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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.