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Finding the Fourth Proportional to 343,476.01, 473,985.69 and 207,486.28

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Solution

The fourth proportional to 343,476.01, 473,985.69 and 207,486.28 is: 286,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,476.01 : 473,985.69 = 207,486.28 : x
  2. Step 2: Convert to fraction form
    343,476.01/473,985.69 = 207,486.28/x
  3. Step 3: Cross multiply
    343,476.01x = 473,985.69 × 207,486.28
  4. Step 4: Simplify right side
    343,476.01x = 98,345,527,405.74
  5. Step 5: Solve for x
    x = 98,345,527,405.74/343,476.01
  6. Step 6: Final answer
    x = 286,324.30

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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.