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Finding the Fourth Proportional to 479,314.16, 718,971.48 and 163,774.16

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Solution

The fourth proportional to 479,314.16, 718,971.48 and 163,774.16 is: 245,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,314.16 : 718,971.48 = 163,774.16 : x
  2. Step 2: Convert to fraction form
    479,314.16/718,971.48 = 163,774.16/x
  3. Step 3: Cross multiply
    479,314.16x = 718,971.48 × 163,774.16
  4. Step 4: Simplify right side
    479,314.16x = 117,748,950,200.96
  5. Step 5: Solve for x
    x = 117,748,950,200.96/479,314.16
  6. Step 6: Final answer
    x = 245,661.32

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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.