Home / 479,312.16-718,968.48-163,772.16

Finding the Fourth Proportional to 479,312.16, 718,968.48 and 163,772.16

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Solution

The fourth proportional to 479,312.16, 718,968.48 and 163,772.16 is: 245,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,312.16 : 718,968.48 = 163,772.16 : x
  2. Step 2: Convert to fraction form
    479,312.16/718,968.48 = 163,772.16/x
  3. Step 3: Cross multiply
    479,312.16x = 718,968.48 × 163,772.16
  4. Step 4: Simplify right side
    479,312.16x = 117,747,020,941.52
  5. Step 5: Solve for x
    x = 117,747,020,941.52/479,312.16
  6. Step 6: Final answer
    x = 245,658.32

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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.