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Finding the Fourth Proportional to 343,039.51, 473,394.05 and 190,087.60

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Solution

The fourth proportional to 343,039.51, 473,394.05 and 190,087.60 is: 262,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,039.51 : 473,394.05 = 190,087.60 : x
  2. Step 2: Convert to fraction form
    343,039.51/473,394.05 = 190,087.60/x
  3. Step 3: Cross multiply
    343,039.51x = 473,394.05 × 190,087.60
  4. Step 4: Simplify right side
    343,039.51x = 89,986,338,818.78
  5. Step 5: Solve for x
    x = 89,986,338,818.78/343,039.51
  6. Step 6: Final answer
    x = 262,320.63

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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.