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Finding the Fourth Proportional to 553,315.59, 830,002.79 and 174,265.97

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Solution

The fourth proportional to 553,315.59, 830,002.79 and 174,265.97 is: 261,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,315.59 : 830,002.79 = 174,265.97 : x
  2. Step 2: Convert to fraction form
    553,315.59/830,002.79 = 174,265.97/x
  3. Step 3: Cross multiply
    553,315.59x = 830,002.79 × 174,265.97
  4. Step 4: Simplify right side
    553,315.59x = 144,641,237,587.71
  5. Step 5: Solve for x
    x = 144,641,237,587.71/553,315.59
  6. Step 6: Final answer
    x = 261,408.21

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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.