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Finding the Fourth Proportional to 672,881.05, 928,573.23 and 366,956.74

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Solution

The fourth proportional to 672,881.05, 928,573.23 and 366,956.74 is: 506,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,881.05 : 928,573.23 = 366,956.74 : x
  2. Step 2: Convert to fraction form
    672,881.05/928,573.23 = 366,956.74/x
  3. Step 3: Cross multiply
    672,881.05x = 928,573.23 × 366,956.74
  4. Step 4: Simplify right side
    672,881.05x = 340,746,205,332.07
  5. Step 5: Solve for x
    x = 340,746,205,332.07/672,881.05
  6. Step 6: Final answer
    x = 506,398.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.