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Finding the Fourth Proportional to 364,628.40, 546,942.60 and 238,657.20

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Solution

The fourth proportional to 364,628.40, 546,942.60 and 238,657.20 is: 357,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,628.40 : 546,942.60 = 238,657.20 : x
  2. Step 2: Convert to fraction form
    364,628.40/546,942.60 = 238,657.20/x
  3. Step 3: Cross multiply
    364,628.40x = 546,942.60 × 238,657.20
  4. Step 4: Simplify right side
    364,628.40x = 130,531,789,476.72
  5. Step 5: Solve for x
    x = 130,531,789,476.72/364,628.40
  6. Step 6: Final answer
    x = 357,985.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.