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Finding the Fourth Proportional to 518,326.78, 777,595.86 and 293,787.49

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Solution

The fourth proportional to 518,326.78, 777,595.86 and 293,787.49 is: 440,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,326.78 : 777,595.86 = 293,787.49 : x
  2. Step 2: Convert to fraction form
    518,326.78/777,595.86 = 293,787.49/x
  3. Step 3: Cross multiply
    518,326.78x = 777,595.86 × 293,787.49
  4. Step 4: Simplify right side
    518,326.78x = 228,447,932,055.81
  5. Step 5: Solve for x
    x = 228,447,932,055.81/518,326.78
  6. Step 6: Final answer
    x = 440,741.14

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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.