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Finding the Fourth Proportional to 343,215.72, 473,618.34 and 199,999.08

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Solution

The fourth proportional to 343,215.72, 473,618.34 and 199,999.08 is: 275,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,215.72 : 473,618.34 = 199,999.08 : x
  2. Step 2: Convert to fraction form
    343,215.72/473,618.34 = 199,999.08/x
  3. Step 3: Cross multiply
    343,215.72x = 473,618.34 × 199,999.08
  4. Step 4: Simplify right side
    343,215.72x = 94,723,232,271.13
  5. Step 5: Solve for x
    x = 94,723,232,271.13/343,215.72
  6. Step 6: Final answer
    x = 275,987.45

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1.5x scale

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.