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Finding the Fourth Proportional to 559,545.74, 772,148.94 and 317,827.58

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Solution

The fourth proportional to 559,545.74, 772,148.94 and 317,827.58 is: 438,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,545.74 : 772,148.94 = 317,827.58 : x
  2. Step 2: Convert to fraction form
    559,545.74/772,148.94 = 317,827.58/x
  3. Step 3: Cross multiply
    559,545.74x = 772,148.94 × 317,827.58
  4. Step 4: Simplify right side
    559,545.74x = 245,410,228,999.77
  5. Step 5: Solve for x
    x = 245,410,228,999.77/559,545.74
  6. Step 6: Final answer
    x = 438,588.33

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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.