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Finding the Fourth Proportional to 577,211.86, 796,557.38 and 319,084.63

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Solution

The fourth proportional to 577,211.86, 796,557.38 and 319,084.63 is: 440,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,211.86 : 796,557.38 = 319,084.63 : x
  2. Step 2: Convert to fraction form
    577,211.86/796,557.38 = 319,084.63/x
  3. Step 3: Cross multiply
    577,211.86x = 796,557.38 × 319,084.63
  4. Step 4: Simplify right side
    577,211.86x = 254,169,211,292.86
  5. Step 5: Solve for x
    x = 254,169,211,292.86/577,211.86
  6. Step 6: Final answer
    x = 440,339.55

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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.