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Finding the Fourth Proportional to 358,909.65, 495,317.39 and 197,764.66

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Solution

The fourth proportional to 358,909.65, 495,317.39 and 197,764.66 is: 272,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,909.65 : 495,317.39 = 197,764.66 : x
  2. Step 2: Convert to fraction form
    358,909.65/495,317.39 = 197,764.66/x
  3. Step 3: Cross multiply
    358,909.65x = 495,317.39 × 197,764.66
  4. Step 4: Simplify right side
    358,909.65x = 97,956,274,855.76
  5. Step 5: Solve for x
    x = 97,956,274,855.76/358,909.65
  6. Step 6: Final answer
    x = 272,927.39

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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.