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Finding the Fourth Proportional to 613,387.32, 920,117.73 and 192,663.19

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Solution

The fourth proportional to 613,387.32, 920,117.73 and 192,663.19 is: 289,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,387.32 : 920,117.73 = 192,663.19 : x
  2. Step 2: Convert to fraction form
    613,387.32/920,117.73 = 192,663.19/x
  3. Step 3: Cross multiply
    613,387.32x = 920,117.73 × 192,663.19
  4. Step 4: Simplify right side
    613,387.32x = 177,272,817,037.36
  5. Step 5: Solve for x
    x = 177,272,817,037.36/613,387.32
  6. Step 6: Final answer
    x = 289,006.33

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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.