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Finding the Fourth Proportional to 585,475.25, 807,955.85 and 317,203.25

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Solution

The fourth proportional to 585,475.25, 807,955.85 and 317,203.25 is: 437,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,475.25 : 807,955.85 = 317,203.25 : x
  2. Step 2: Convert to fraction form
    585,475.25/807,955.85 = 317,203.25/x
  3. Step 3: Cross multiply
    585,475.25x = 807,955.85 × 317,203.25
  4. Step 4: Simplify right side
    585,475.25x = 256,286,219,890.50
  5. Step 5: Solve for x
    x = 256,286,219,890.50/585,475.25
  6. Step 6: Final answer
    x = 437,740.49

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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.