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Finding the Fourth Proportional to 479,316.16, 718,974.48 and 163,776.16

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Solution

The fourth proportional to 479,316.16, 718,974.48 and 163,776.16 is: 245,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,316.16 : 718,974.48 = 163,776.16 : x
  2. Step 2: Convert to fraction form
    479,316.16/718,974.48 = 163,776.16/x
  3. Step 3: Cross multiply
    479,316.16x = 718,974.48 × 163,776.16
  4. Step 4: Simplify right side
    479,316.16x = 117,750,879,472.40
  5. Step 5: Solve for x
    x = 117,750,879,472.40/479,316.16
  6. Step 6: Final answer
    x = 245,664.32

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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.