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Finding the Fourth Proportional to 313,281.46, 432,328.45 and 170,041.47

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Solution

The fourth proportional to 313,281.46, 432,328.45 and 170,041.47 is: 234,657.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,281.46 : 432,328.45 = 170,041.47 : x
  2. Step 2: Convert to fraction form
    313,281.46/432,328.45 = 170,041.47/x
  3. Step 3: Cross multiply
    313,281.46x = 432,328.45 × 170,041.47
  4. Step 4: Simplify right side
    313,281.46x = 73,513,765,160.82
  5. Step 5: Solve for x
    x = 73,513,765,160.82/313,281.46
  6. Step 6: Final answer
    x = 234,657.25

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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.