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Finding the Fourth Proportional to 719,249.65, 992,566.62 and 392,565.67

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Solution

The fourth proportional to 719,249.65, 992,566.62 and 392,565.67 is: 541,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,249.65 : 992,566.62 = 392,565.67 : x
  2. Step 2: Convert to fraction form
    719,249.65/992,566.62 = 392,565.67/x
  3. Step 3: Cross multiply
    719,249.65x = 992,566.62 × 392,565.67
  4. Step 4: Simplify right side
    719,249.65x = 389,647,577,718.52
  5. Step 5: Solve for x
    x = 389,647,577,718.52/719,249.65
  6. Step 6: Final answer
    x = 541,741.77

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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.