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Finding the Fourth Proportional to 559,718.01, 772,411.14 and 318,001.02

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Solution

The fourth proportional to 559,718.01, 772,411.14 and 318,001.02 is: 438,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,718.01 : 772,411.14 = 318,001.02 : x
  2. Step 2: Convert to fraction form
    559,718.01/772,411.14 = 318,001.02/x
  3. Step 3: Cross multiply
    559,718.01x = 772,411.14 × 318,001.02
  4. Step 4: Simplify right side
    559,718.01x = 245,627,530,379.36
  5. Step 5: Solve for x
    x = 245,627,530,379.36/559,718.01
  6. Step 6: Final answer
    x = 438,841.57

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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.