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Finding the Fourth Proportional to 423,006.74, 583,880.02 and 272,103.74

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Solution

The fourth proportional to 423,006.74, 583,880.02 and 272,103.74 is: 375,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,006.74 : 583,880.02 = 272,103.74 : x
  2. Step 2: Convert to fraction form
    423,006.74/583,880.02 = 272,103.74/x
  3. Step 3: Cross multiply
    423,006.74x = 583,880.02 × 272,103.74
  4. Step 4: Simplify right side
    423,006.74x = 158,875,937,932.72
  5. Step 5: Solve for x
    x = 158,875,937,932.72/423,006.74
  6. Step 6: Final answer
    x = 375,587.25

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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.