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Finding the Fourth Proportional to 343,405.44, 473,890.68 and 190,444.32

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Solution

The fourth proportional to 343,405.44, 473,890.68 and 190,444.32 is: 262,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,405.44 : 473,890.68 = 190,444.32 : x
  2. Step 2: Convert to fraction form
    343,405.44/473,890.68 = 190,444.32/x
  3. Step 3: Cross multiply
    343,405.44x = 473,890.68 × 190,444.32
  4. Step 4: Simplify right side
    343,405.44x = 90,249,788,306.94
  5. Step 5: Solve for x
    x = 90,249,788,306.94/343,405.44
  6. Step 6: Final answer
    x = 262,808.27

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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.