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Finding the Fourth Proportional to 313,295.32, 432,347.97 and 170,055.46

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Solution

The fourth proportional to 313,295.32, 432,347.97 and 170,055.46 is: 234,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,295.32 : 432,347.97 = 170,055.46 : x
  2. Step 2: Convert to fraction form
    313,295.32/432,347.97 = 170,055.46/x
  3. Step 3: Cross multiply
    313,295.32x = 432,347.97 × 170,055.46
  4. Step 4: Simplify right side
    313,295.32x = 73,523,132,918.42
  5. Step 5: Solve for x
    x = 73,523,132,918.42/313,295.32
  6. Step 6: Final answer
    x = 234,676.77

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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.