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Finding the Fourth Proportional to 448,726.40, 673,089.60 and 164,416.40

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Solution

The fourth proportional to 448,726.40, 673,089.60 and 164,416.40 is: 246,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,726.40 : 673,089.60 = 164,416.40 : x
  2. Step 2: Convert to fraction form
    448,726.40/673,089.60 = 164,416.40/x
  3. Step 3: Cross multiply
    448,726.40x = 673,089.60 × 164,416.40
  4. Step 4: Simplify right side
    448,726.40x = 110,666,968,909.44
  5. Step 5: Solve for x
    x = 110,666,968,909.44/448,726.40
  6. Step 6: Final answer
    x = 246,624.60

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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.