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Finding the Fourth Proportional to 382,465.54, 527,802.98 and 212,699.66

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Solution

The fourth proportional to 382,465.54, 527,802.98 and 212,699.66 is: 293,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,465.54 : 527,802.98 = 212,699.66 : x
  2. Step 2: Convert to fraction form
    382,465.54/527,802.98 = 212,699.66/x
  3. Step 3: Cross multiply
    382,465.54x = 527,802.98 × 212,699.66
  4. Step 4: Simplify right side
    382,465.54x = 112,263,514,392.99
  5. Step 5: Solve for x
    x = 112,263,514,392.99/382,465.54
  6. Step 6: Final answer
    x = 293,525.83

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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.