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Finding the Fourth Proportional to 518,952.96, 777,751.20 and 266,019.12

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Solution

The fourth proportional to 518,952.96, 777,751.20 and 266,019.12 is: 398,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,952.96 : 777,751.20 = 266,019.12 : x
  2. Step 2: Convert to fraction form
    518,952.96/777,751.20 = 266,019.12/x
  3. Step 3: Cross multiply
    518,952.96x = 777,751.20 × 266,019.12
  4. Step 4: Simplify right side
    518,952.96x = 206,896,689,802.94
  5. Step 5: Solve for x
    x = 206,896,689,802.94/518,952.96
  6. Step 6: Final answer
    x = 398,681.01

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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.