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Finding the Fourth Proportional to 354,741.40, 532,112.10 and 348,909.40

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Solution

The fourth proportional to 354,741.40, 532,112.10 and 348,909.40 is: 523,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,741.40 : 532,112.10 = 348,909.40 : x
  2. Step 2: Convert to fraction form
    354,741.40/532,112.10 = 348,909.40/x
  3. Step 3: Cross multiply
    354,741.40x = 532,112.10 × 348,909.40
  4. Step 4: Simplify right side
    354,741.40x = 185,658,913,543.74
  5. Step 5: Solve for x
    x = 185,658,913,543.74/354,741.40
  6. Step 6: Final answer
    x = 523,364.10

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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.