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Finding the Fourth Proportional to 364,389.60, 501,823.44 and 313,029.12

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Solution

The fourth proportional to 364,389.60, 501,823.44 and 313,029.12 is: 431,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,389.60 : 501,823.44 = 313,029.12 : x
  2. Step 2: Convert to fraction form
    364,389.60/501,823.44 = 313,029.12/x
  3. Step 3: Cross multiply
    364,389.60x = 501,823.44 × 313,029.12
  4. Step 4: Simplify right side
    364,389.60x = 157,085,349,818.57
  5. Step 5: Solve for x
    x = 157,085,349,818.57/364,389.60
  6. Step 6: Final answer
    x = 431,091.75

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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.