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Finding the Fourth Proportional to 563,149.79, 776,951.96 and 427,041.95

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Solution

The fourth proportional to 563,149.79, 776,951.96 and 427,041.95 is: 589,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,149.79 : 776,951.96 = 427,041.95 : x
  2. Step 2: Convert to fraction form
    563,149.79/776,951.96 = 427,041.95/x
  3. Step 3: Cross multiply
    563,149.79x = 776,951.96 × 427,041.95
  4. Step 4: Simplify right side
    563,149.79x = 331,791,077,919.51
  5. Step 5: Solve for x
    x = 331,791,077,919.51/563,149.79
  6. Step 6: Final answer
    x = 589,170.21

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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.