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Finding the Fourth Proportional to 585,529.50, 808,031.28 and 317,257.50

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Solution

The fourth proportional to 585,529.50, 808,031.28 and 317,257.50 is: 437,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,529.50 : 808,031.28 = 317,257.50 : x
  2. Step 2: Convert to fraction form
    585,529.50/808,031.28 = 317,257.50/x
  3. Step 3: Cross multiply
    585,529.50x = 808,031.28 × 317,257.50
  4. Step 4: Simplify right side
    585,529.50x = 256,353,983,814.60
  5. Step 5: Solve for x
    x = 256,353,983,814.60/585,529.50
  6. Step 6: Final answer
    x = 437,815.66

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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.