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Finding the Fourth Proportional to 406,076.40, 607,948.20 and 248,612.40

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Solution

The fourth proportional to 406,076.40, 607,948.20 and 248,612.40 is: 372,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,076.40 : 607,948.20 = 248,612.40 : x
  2. Step 2: Convert to fraction form
    406,076.40/607,948.20 = 248,612.40/x
  3. Step 3: Cross multiply
    406,076.40x = 607,948.20 × 248,612.40
  4. Step 4: Simplify right side
    406,076.40x = 151,143,461,077.68
  5. Step 5: Solve for x
    x = 151,143,461,077.68/406,076.40
  6. Step 6: Final answer
    x = 372,204.49

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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.