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Finding the Fourth Proportional to 346,411.40, 519,617.10 and 159,787.40

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Solution

The fourth proportional to 346,411.40, 519,617.10 and 159,787.40 is: 239,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,411.40 : 519,617.10 = 159,787.40 : x
  2. Step 2: Convert to fraction form
    346,411.40/519,617.10 = 159,787.40/x
  3. Step 3: Cross multiply
    346,411.40x = 519,617.10 × 159,787.40
  4. Step 4: Simplify right side
    346,411.40x = 83,028,265,404.54
  5. Step 5: Solve for x
    x = 83,028,265,404.54/346,411.40
  6. Step 6: Final answer
    x = 239,681.10

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Similar ratio
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1.5x scale

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.