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Finding the Fourth Proportional to 3,602,192.98, 4,971,065.55 and 1,970,565.32

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Solution

The fourth proportional to 3,602,192.98, 4,971,065.55 and 1,970,565.32 is: 2,719,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602,192.98 : 4,971,065.55 = 1,970,565.32 : x
  2. Step 2: Convert to fraction form
    3,602,192.98/4,971,065.55 = 1,970,565.32/x
  3. Step 3: Cross multiply
    3,602,192.98x = 4,971,065.55 × 1,970,565.32
  4. Step 4: Simplify right side
    3,602,192.98x = 9,795,809,369,979.17
  5. Step 5: Solve for x
    x = 9,795,809,369,979.17/3,602,192.98
  6. Step 6: Final answer
    x = 2,719,401.60

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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.