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Finding the Fourth Proportional to 647,073.79, 970,613.19 and 197,792.91

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Solution

The fourth proportional to 647,073.79, 970,613.19 and 197,792.91 is: 296,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,073.79 : 970,613.19 = 197,792.91 : x
  2. Step 2: Convert to fraction form
    647,073.79/970,613.19 = 197,792.91/x
  3. Step 3: Cross multiply
    647,073.79x = 970,613.19 × 197,792.91
  4. Step 4: Simplify right side
    647,073.79x = 191,980,406,345.52
  5. Step 5: Solve for x
    x = 191,980,406,345.52/647,073.79
  6. Step 6: Final answer
    x = 296,690.13

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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.