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Finding the Fourth Proportional to 522,367.93, 721,021.71 and 341,108.16

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Solution

The fourth proportional to 522,367.93, 721,021.71 and 341,108.16 is: 470,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,367.93 : 721,021.71 = 341,108.16 : x
  2. Step 2: Convert to fraction form
    522,367.93/721,021.71 = 341,108.16/x
  3. Step 3: Cross multiply
    522,367.93x = 721,021.71 × 341,108.16
  4. Step 4: Simplify right side
    522,367.93x = 245,946,388,818.15
  5. Step 5: Solve for x
    x = 245,946,388,818.15/522,367.93
  6. Step 6: Final answer
    x = 470,829.80

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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.