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Finding the Fourth Proportional to 520,233.50, 717,980.58 and 293,893.58

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Solution

The fourth proportional to 520,233.50, 717,980.58 and 293,893.58 is: 405,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,233.50 : 717,980.58 = 293,893.58 : x
  2. Step 2: Convert to fraction form
    520,233.50/717,980.58 = 293,893.58/x
  3. Step 3: Cross multiply
    520,233.50x = 717,980.58 × 293,893.58
  4. Step 4: Simplify right side
    520,233.50x = 211,009,883,026.68
  5. Step 5: Solve for x
    x = 211,009,883,026.68/520,233.50
  6. Step 6: Final answer
    x = 405,606.10

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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.