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Finding the Fourth Proportional to 351,953.44, 528,281.64 and 194,256.16

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Solution

The fourth proportional to 351,953.44, 528,281.64 and 194,256.16 is: 291,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,953.44 : 528,281.64 = 194,256.16 : x
  2. Step 2: Convert to fraction form
    351,953.44/528,281.64 = 194,256.16/x
  3. Step 3: Cross multiply
    351,953.44x = 528,281.64 × 194,256.16
  4. Step 4: Simplify right side
    351,953.44x = 102,621,962,784.90
  5. Step 5: Solve for x
    x = 102,621,962,784.90/351,953.44
  6. Step 6: Final answer
    x = 291,578.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.