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Finding the Fourth Proportional to 676,409.52, 932,995.98 and 434,997.51

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Solution

The fourth proportional to 676,409.52, 932,995.98 and 434,997.51 is: 600,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,409.52 : 932,995.98 = 434,997.51 : x
  2. Step 2: Convert to fraction form
    676,409.52/932,995.98 = 434,997.51/x
  3. Step 3: Cross multiply
    676,409.52x = 932,995.98 × 434,997.51
  4. Step 4: Simplify right side
    676,409.52x = 405,850,928,140.01
  5. Step 5: Solve for x
    x = 405,850,928,140.01/676,409.52
  6. Step 6: Final answer
    x = 600,007.71

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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.