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Finding the Fourth Proportional to 314,655.60, 434,225.52 and 171,416.69

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Solution

The fourth proportional to 314,655.60, 434,225.52 and 171,416.69 is: 236,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,655.60 : 434,225.52 = 171,416.69 : x
  2. Step 2: Convert to fraction form
    314,655.60/434,225.52 = 171,416.69/x
  3. Step 3: Cross multiply
    314,655.60x = 434,225.52 × 171,416.69
  4. Step 4: Simplify right side
    314,655.60x = 74,433,499,180.80
  5. Step 5: Solve for x
    x = 74,433,499,180.80/314,655.60
  6. Step 6: Final answer
    x = 236,555.46

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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.