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Finding the Fourth Proportional to 522,114.86, 720,504.51 and 307,267.58

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Solution

The fourth proportional to 522,114.86, 720,504.51 and 307,267.58 is: 424,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,114.86 : 720,504.51 = 307,267.58 : x
  2. Step 2: Convert to fraction form
    522,114.86/720,504.51 = 307,267.58/x
  3. Step 3: Cross multiply
    522,114.86x = 720,504.51 × 307,267.58
  4. Step 4: Simplify right side
    522,114.86x = 221,387,677,166.79
  5. Step 5: Solve for x
    x = 221,387,677,166.79/522,114.86
  6. Step 6: Final answer
    x = 424,021.02

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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.