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Finding the Fourth Proportional to 313,280.48, 432,315.49 and 170,037.45

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Solution

The fourth proportional to 313,280.48, 432,315.49 and 170,037.45 is: 234,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,280.48 : 432,315.49 = 170,037.45 : x
  2. Step 2: Convert to fraction form
    313,280.48/432,315.49 = 170,037.45/x
  3. Step 3: Cross multiply
    313,280.48x = 432,315.49 × 170,037.45
  4. Step 4: Simplify right side
    313,280.48x = 73,509,820,503.34
  5. Step 5: Solve for x
    x = 73,509,820,503.34/313,280.48
  6. Step 6: Final answer
    x = 234,645.39

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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.