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Finding the Fourth Proportional to 313,348.60, 432,426.28 and 170,108.64

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Solution

The fourth proportional to 313,348.60, 432,426.28 and 170,108.64 is: 234,752.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,348.60 : 432,426.28 = 170,108.64 : x
  2. Step 2: Convert to fraction form
    313,348.60/432,426.28 = 170,108.64/x
  3. Step 3: Cross multiply
    313,348.60x = 432,426.28 × 170,108.64
  4. Step 4: Simplify right side
    313,348.60x = 73,559,444,228.93
  5. Step 5: Solve for x
    x = 73,559,444,228.93/313,348.60
  6. Step 6: Final answer
    x = 234,752.75

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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.