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Finding the Fourth Proportional to 404,590.28, 556,836.54 and 296,989.88

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Solution

The fourth proportional to 404,590.28, 556,836.54 and 296,989.88 is: 408,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,590.28 : 556,836.54 = 296,989.88 : x
  2. Step 2: Convert to fraction form
    404,590.28/556,836.54 = 296,989.88/x
  3. Step 3: Cross multiply
    404,590.28x = 556,836.54 × 296,989.88
  4. Step 4: Simplify right side
    404,590.28x = 165,374,817,194.22
  5. Step 5: Solve for x
    x = 165,374,817,194.22/404,590.28
  6. Step 6: Final answer
    x = 408,746.39

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1.5x scale

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.