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Finding the Fourth Proportional to 696,298.43, 960,894.28 and 438,346.05

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Solution

The fourth proportional to 696,298.43, 960,894.28 and 438,346.05 is: 604,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,298.43 : 960,894.28 = 438,346.05 : x
  2. Step 2: Convert to fraction form
    696,298.43/960,894.28 = 438,346.05/x
  3. Step 3: Cross multiply
    696,298.43x = 960,894.28 × 438,346.05
  4. Step 4: Simplify right side
    696,298.43x = 421,204,209,050.17
  5. Step 5: Solve for x
    x = 421,204,209,050.17/696,298.43
  6. Step 6: Final answer
    x = 604,919.08

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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.