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Finding the Fourth Proportional to 544,178.48, 751,332.16 and 486,638.80

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Solution

The fourth proportional to 544,178.48, 751,332.16 and 486,638.80 is: 671,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,178.48 : 751,332.16 = 486,638.80 : x
  2. Step 2: Convert to fraction form
    544,178.48/751,332.16 = 486,638.80/x
  3. Step 3: Cross multiply
    544,178.48x = 751,332.16 × 486,638.80
  4. Step 4: Simplify right side
    544,178.48x = 365,627,380,743.81
  5. Step 5: Solve for x
    x = 365,627,380,743.81/544,178.48
  6. Step 6: Final answer
    x = 671,888.72

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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.