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Finding the Fourth Proportional to 466,710.40, 700,411.20 and 186,428.80

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Solution

The fourth proportional to 466,710.40, 700,411.20 and 186,428.80 is: 279,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,710.40 : 700,411.20 = 186,428.80 : x
  2. Step 2: Convert to fraction form
    466,710.40/700,411.20 = 186,428.80/x
  3. Step 3: Cross multiply
    466,710.40x = 700,411.20 × 186,428.80
  4. Step 4: Simplify right side
    466,710.40x = 130,576,819,522.56
  5. Step 5: Solve for x
    x = 130,576,819,522.56/466,710.40
  6. Step 6: Final answer
    x = 279,781.25

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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.