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Finding the Fourth Proportional to 559,712.01, 772,402.86 and 317,995.02

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Solution

The fourth proportional to 559,712.01, 772,402.86 and 317,995.02 is: 438,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,712.01 : 772,402.86 = 317,995.02 : x
  2. Step 2: Convert to fraction form
    559,712.01/772,402.86 = 317,995.02/x
  3. Step 3: Cross multiply
    559,712.01x = 772,402.86 × 317,995.02
  4. Step 4: Simplify right side
    559,712.01x = 245,620,262,913.76
  5. Step 5: Solve for x
    x = 245,620,262,913.76/559,712.01
  6. Step 6: Final answer
    x = 438,833.29

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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.