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Finding the Fourth Proportional to 405,727.36, 607,541.28 and 360,589.12

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Solution

The fourth proportional to 405,727.36, 607,541.28 and 360,589.12 is: 539,950.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,727.36 : 607,541.28 = 360,589.12 : x
  2. Step 2: Convert to fraction form
    405,727.36/607,541.28 = 360,589.12/x
  3. Step 3: Cross multiply
    405,727.36x = 607,541.28 × 360,589.12
  4. Step 4: Simplify right side
    405,727.36x = 219,072,775,518.87
  5. Step 5: Solve for x
    x = 219,072,775,518.87/405,727.36
  6. Step 6: Final answer
    x = 539,950.71

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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.