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Finding the Fourth Proportional to 559,657.77, 772,330.33 and 317,953.61

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Solution

The fourth proportional to 559,657.77, 772,330.33 and 317,953.61 is: 438,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,657.77 : 772,330.33 = 317,953.61 : x
  2. Step 2: Convert to fraction form
    559,657.77/772,330.33 = 317,953.61/x
  3. Step 3: Cross multiply
    559,657.77x = 772,330.33 × 317,953.61
  4. Step 4: Simplify right side
    559,657.77x = 245,565,212,614.23
  5. Step 5: Solve for x
    x = 245,565,212,614.23/559,657.77
  6. Step 6: Final answer
    x = 438,777.46

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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.