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Finding the Fourth Proportional to 556,411.80, 767,849.18 and 301,763.19

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Solution

The fourth proportional to 556,411.80, 767,849.18 and 301,763.19 is: 416,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,411.80 : 767,849.18 = 301,763.19 : x
  2. Step 2: Convert to fraction form
    556,411.80/767,849.18 = 301,763.19/x
  3. Step 3: Cross multiply
    556,411.80x = 767,849.18 × 301,763.19
  4. Step 4: Simplify right side
    556,411.80x = 231,708,616,486.87
  5. Step 5: Solve for x
    x = 231,708,616,486.87/556,411.80
  6. Step 6: Final answer
    x = 416,433.69

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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.