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Finding the Fourth Proportional to 571,882.40, 789,244.56 and 317,259.68

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Solution

The fourth proportional to 571,882.40, 789,244.56 and 317,259.68 is: 437,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,882.40 : 789,244.56 = 317,259.68 : x
  2. Step 2: Convert to fraction form
    571,882.40/789,244.56 = 317,259.68/x
  3. Step 3: Cross multiply
    571,882.40x = 789,244.56 × 317,259.68
  4. Step 4: Simplify right side
    571,882.40x = 250,395,476,547.34
  5. Step 5: Solve for x
    x = 250,395,476,547.34/571,882.40
  6. Step 6: Final answer
    x = 437,844.35

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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.