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Finding the Fourth Proportional to 310,984.56, 429,154.65 and 175,018.68

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Solution

The fourth proportional to 310,984.56, 429,154.65 and 175,018.68 is: 241,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,984.56 : 429,154.65 = 175,018.68 : x
  2. Step 2: Convert to fraction form
    310,984.56/429,154.65 = 175,018.68/x
  3. Step 3: Cross multiply
    310,984.56x = 429,154.65 × 175,018.68
  4. Step 4: Simplify right side
    310,984.56x = 75,110,080,358.86
  5. Step 5: Solve for x
    x = 75,110,080,358.86/310,984.56
  6. Step 6: Final answer
    x = 241,523.50

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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.