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Finding the Fourth Proportional to 313,598.76, 432,763.90 and 170,359.82

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Solution

The fourth proportional to 313,598.76, 432,763.90 and 170,359.82 is: 235,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,598.76 : 432,763.90 = 170,359.82 : x
  2. Step 2: Convert to fraction form
    313,598.76/432,763.90 = 170,359.82/x
  3. Step 3: Cross multiply
    313,598.76x = 432,763.90 × 170,359.82
  4. Step 4: Simplify right side
    313,598.76x = 73,725,579,139.64
  5. Step 5: Solve for x
    x = 73,725,579,139.64/313,598.76
  6. Step 6: Final answer
    x = 235,095.25

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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.