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Finding the Fourth Proportional to 504,366.36, 696,127.68 and 289,653.72

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Solution

The fourth proportional to 504,366.36, 696,127.68 and 289,653.72 is: 399,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,366.36 : 696,127.68 = 289,653.72 : x
  2. Step 2: Convert to fraction form
    504,366.36/696,127.68 = 289,653.72/x
  3. Step 3: Cross multiply
    504,366.36x = 696,127.68 × 289,653.72
  4. Step 4: Simplify right side
    504,366.36x = 201,635,972,106.97
  5. Step 5: Solve for x
    x = 201,635,972,106.97/504,366.36
  6. Step 6: Final answer
    x = 399,780.77

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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.