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Finding the Fourth Proportional to 535,612.15, 739,120.03 and 293,888.71

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Solution

The fourth proportional to 535,612.15, 739,120.03 and 293,888.71 is: 405,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,612.15 : 739,120.03 = 293,888.71 : x
  2. Step 2: Convert to fraction form
    535,612.15/739,120.03 = 293,888.71/x
  3. Step 3: Cross multiply
    535,612.15x = 739,120.03 × 293,888.71
  4. Step 4: Simplify right side
    535,612.15x = 217,219,032,151.86
  5. Step 5: Solve for x
    x = 217,219,032,151.86/535,612.15
  6. Step 6: Final answer
    x = 405,552.85

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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.