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Finding the Fourth Proportional to 354,725.40, 532,088.10 and 348,893.40

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Solution

The fourth proportional to 354,725.40, 532,088.10 and 348,893.40 is: 523,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,725.40 : 532,088.10 = 348,893.40 : x
  2. Step 2: Convert to fraction form
    354,725.40/532,088.10 = 348,893.40/x
  3. Step 3: Cross multiply
    354,725.40x = 532,088.10 × 348,893.40
  4. Step 4: Simplify right side
    354,725.40x = 185,642,026,308.54
  5. Step 5: Solve for x
    x = 185,642,026,308.54/354,725.40
  6. Step 6: Final answer
    x = 523,340.10

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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.