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Finding the Fourth Proportional to 520,036.56, 717,780.96 and 293,813.28

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Solution

The fourth proportional to 520,036.56, 717,780.96 and 293,813.28 is: 405,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,036.56 : 717,780.96 = 293,813.28 : x
  2. Step 2: Convert to fraction form
    520,036.56/717,780.96 = 293,813.28/x
  3. Step 3: Cross multiply
    520,036.56x = 717,780.96 × 293,813.28
  4. Step 4: Simplify right side
    520,036.56x = 210,893,578,179.15
  5. Step 5: Solve for x
    x = 210,893,578,179.15/520,036.56
  6. Step 6: Final answer
    x = 405,536.06

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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.