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Finding the Fourth Proportional to 616,726.91, 847,811.46 and 530,369.57

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Solution

The fourth proportional to 616,726.91, 847,811.46 and 530,369.57 is: 729,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,726.91 : 847,811.46 = 530,369.57 : x
  2. Step 2: Convert to fraction form
    616,726.91/847,811.46 = 530,369.57/x
  3. Step 3: Cross multiply
    616,726.91x = 847,811.46 × 530,369.57
  4. Step 4: Simplify right side
    616,726.91x = 449,653,400,606.36
  5. Step 5: Solve for x
    x = 449,653,400,606.36/616,726.91
  6. Step 6: Final answer
    x = 729,096.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.