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Finding the Fourth Proportional to 720,462.40, 1,079,138.40 and 596,046.40

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Solution

The fourth proportional to 720,462.40, 1,079,138.40 and 596,046.40 is: 892,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,462.40 : 1,079,138.40 = 596,046.40 : x
  2. Step 2: Convert to fraction form
    720,462.40/1,079,138.40 = 596,046.40/x
  3. Step 3: Cross multiply
    720,462.40x = 1,079,138.40 × 596,046.40
  4. Step 4: Simplify right side
    720,462.40x = 643,216,558,421.76
  5. Step 5: Solve for x
    x = 643,216,558,421.76/720,462.40
  6. Step 6: Final answer
    x = 892,782.97

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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.