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Finding the Fourth Proportional to 382,804.45, 528,259.12 and 213,034.93

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Solution

The fourth proportional to 382,804.45, 528,259.12 and 213,034.93 is: 293,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,804.45 : 528,259.12 = 213,034.93 : x
  2. Step 2: Convert to fraction form
    382,804.45/528,259.12 = 213,034.93/x
  3. Step 3: Cross multiply
    382,804.45x = 528,259.12 × 213,034.93
  4. Step 4: Simplify right side
    382,804.45x = 112,537,644,651.06
  5. Step 5: Solve for x
    x = 112,537,644,651.06/382,804.45
  6. Step 6: Final answer
    x = 293,982.07

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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.