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Finding the Fourth Proportional to 468,467.42, 646,485.24 and 253,607.47

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Solution

The fourth proportional to 468,467.42, 646,485.24 and 253,607.47 is: 349,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,467.42 : 646,485.24 = 253,607.47 : x
  2. Step 2: Convert to fraction form
    468,467.42/646,485.24 = 253,607.47/x
  3. Step 3: Cross multiply
    468,467.42x = 646,485.24 × 253,607.47
  4. Step 4: Simplify right side
    468,467.42x = 163,953,486,108.74
  5. Step 5: Solve for x
    x = 163,953,486,108.74/468,467.42
  6. Step 6: Final answer
    x = 349,978.42

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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.