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Finding the Fourth Proportional to 343,358.44, 473,835.70 and 190,407.40

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Solution

The fourth proportional to 343,358.44, 473,835.70 and 190,407.40 is: 262,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,358.44 : 473,835.70 = 190,407.40 : x
  2. Step 2: Convert to fraction form
    343,358.44/473,835.70 = 190,407.40/x
  3. Step 3: Cross multiply
    343,358.44x = 473,835.70 × 190,407.40
  4. Step 4: Simplify right side
    343,358.44x = 90,221,823,664.18
  5. Step 5: Solve for x
    x = 90,221,823,664.18/343,358.44
  6. Step 6: Final answer
    x = 262,762.80

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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.