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Finding the Fourth Proportional to 476,871.40, 715,307.10 and 144,447.40

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Solution

The fourth proportional to 476,871.40, 715,307.10 and 144,447.40 is: 216,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,871.40 : 715,307.10 = 144,447.40 : x
  2. Step 2: Convert to fraction form
    476,871.40/715,307.10 = 144,447.40/x
  3. Step 3: Cross multiply
    476,871.40x = 715,307.10 × 144,447.40
  4. Step 4: Simplify right side
    476,871.40x = 103,324,250,796.54
  5. Step 5: Solve for x
    x = 103,324,250,796.54/476,871.40
  6. Step 6: Final answer
    x = 216,671.10

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.