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Finding the Fourth Proportional to 484,173.50, 668,159.43 and 272,205.50

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Solution

The fourth proportional to 484,173.50, 668,159.43 and 272,205.50 is: 375,643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,173.50 : 668,159.43 = 272,205.50 : x
  2. Step 2: Convert to fraction form
    484,173.50/668,159.43 = 272,205.50/x
  3. Step 3: Cross multiply
    484,173.50x = 668,159.43 × 272,205.50
  4. Step 4: Simplify right side
    484,173.50x = 181,876,671,722.87
  5. Step 5: Solve for x
    x = 181,876,671,722.87/484,173.50
  6. Step 6: Final answer
    x = 375,643.59

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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.