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Finding the Fourth Proportional to 468,467.71, 646,485.65 and 253,607.77

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Solution

The fourth proportional to 468,467.71, 646,485.65 and 253,607.77 is: 349,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,467.71 : 646,485.65 = 253,607.77 : x
  2. Step 2: Convert to fraction form
    468,467.71/646,485.65 = 253,607.77/x
  3. Step 3: Cross multiply
    468,467.71x = 646,485.65 × 253,607.77
  4. Step 4: Simplify right side
    468,467.71x = 163,953,786,200.59
  5. Step 5: Solve for x
    x = 163,953,786,200.59/468,467.71
  6. Step 6: Final answer
    x = 349,978.84

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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.