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Finding the Fourth Proportional to 514,577.70, 771,210.45 and 247,763.70

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Solution

The fourth proportional to 514,577.70, 771,210.45 and 247,763.70 is: 371,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,577.70 : 771,210.45 = 247,763.70 : x
  2. Step 2: Convert to fraction form
    514,577.70/771,210.45 = 247,763.70/x
  3. Step 3: Cross multiply
    514,577.70x = 771,210.45 × 247,763.70
  4. Step 4: Simplify right side
    514,577.70x = 191,077,954,570.67
  5. Step 5: Solve for x
    x = 191,077,954,570.67/514,577.70
  6. Step 6: Final answer
    x = 371,329.64

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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.