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Finding the Fourth Proportional to 554,636.24, 765,396.24 and 299,987.36

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Solution

The fourth proportional to 554,636.24, 765,396.24 and 299,987.36 is: 413,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,636.24 : 765,396.24 = 299,987.36 : x
  2. Step 2: Convert to fraction form
    554,636.24/765,396.24 = 299,987.36/x
  3. Step 3: Cross multiply
    554,636.24x = 765,396.24 × 299,987.36
  4. Step 4: Simplify right side
    554,636.24x = 229,609,197,391.53
  5. Step 5: Solve for x
    x = 229,609,197,391.53/554,636.24
  6. Step 6: Final answer
    x = 413,981.60

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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.