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Finding the Fourth Proportional to 586,797.30, 879,053.94 and 432,642.54

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Solution

The fourth proportional to 586,797.30, 879,053.94 and 432,642.54 is: 648,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,797.30 : 879,053.94 = 432,642.54 : x
  2. Step 2: Convert to fraction form
    586,797.30/879,053.94 = 432,642.54/x
  3. Step 3: Cross multiply
    586,797.30x = 879,053.94 × 432,642.54
  4. Step 4: Simplify right side
    586,797.30x = 380,316,129,398.61
  5. Step 5: Solve for x
    x = 380,316,129,398.61/586,797.30
  6. Step 6: Final answer
    x = 648,121.81

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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.