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Finding the Fourth Proportional to 554,760.99, 765,570.96 and 300,111.57

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Solution

The fourth proportional to 554,760.99, 765,570.96 and 300,111.57 is: 414,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,760.99 : 765,570.96 = 300,111.57 : x
  2. Step 2: Convert to fraction form
    554,760.99/765,570.96 = 300,111.57/x
  3. Step 3: Cross multiply
    554,760.99x = 765,570.96 × 300,111.57
  4. Step 4: Simplify right side
    554,760.99x = 229,756,702,752.01
  5. Step 5: Solve for x
    x = 229,756,702,752.01/554,760.99
  6. Step 6: Final answer
    x = 414,154.40

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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.