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Finding the Fourth Proportional to 559,188.23, 771,701.59 and 317,493.28

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Solution

The fourth proportional to 559,188.23, 771,701.59 and 317,493.28 is: 438,153.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,188.23 : 771,701.59 = 317,493.28 : x
  2. Step 2: Convert to fraction form
    559,188.23/771,701.59 = 317,493.28/x
  3. Step 3: Cross multiply
    559,188.23x = 771,701.59 × 317,493.28
  4. Step 4: Simplify right side
    559,188.23x = 245,010,070,351.81
  5. Step 5: Solve for x
    x = 245,010,070,351.81/559,188.23
  6. Step 6: Final answer
    x = 438,153.13

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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.