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Finding the Fourth Proportional to 286,681.89, 395,628.60 and 157,625.76

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Solution

The fourth proportional to 286,681.89, 395,628.60 and 157,625.76 is: 217,527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,681.89 : 395,628.60 = 157,625.76 : x
  2. Step 2: Convert to fraction form
    286,681.89/395,628.60 = 157,625.76/x
  3. Step 3: Cross multiply
    286,681.89x = 395,628.60 × 157,625.76
  4. Step 4: Simplify right side
    286,681.89x = 62,361,258,752.74
  5. Step 5: Solve for x
    x = 62,361,258,752.74/286,681.89
  6. Step 6: Final answer
    x = 217,527.72

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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.