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Finding the Fourth Proportional to 350,577.29, 484,613.93 and 312,712.12

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Solution

The fourth proportional to 350,577.29, 484,613.93 and 312,712.12 is: 432,271.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,577.29 : 484,613.93 = 312,712.12 : x
  2. Step 2: Convert to fraction form
    350,577.29/484,613.93 = 312,712.12/x
  3. Step 3: Cross multiply
    350,577.29x = 484,613.93 × 312,712.12
  4. Step 4: Simplify right side
    350,577.29x = 151,544,645,445.20
  5. Step 5: Solve for x
    x = 151,544,645,445.20/350,577.29
  6. Step 6: Final answer
    x = 432,271.71

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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.