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Finding the Fourth Proportional to 352,851.40, 530,313.90 and 307,232.20

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Solution

The fourth proportional to 352,851.40, 530,313.90 and 307,232.20 is: 461,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,851.40 : 530,313.90 = 307,232.20 : x
  2. Step 2: Convert to fraction form
    352,851.40/530,313.90 = 307,232.20/x
  3. Step 3: Cross multiply
    352,851.40x = 530,313.90 × 307,232.20
  4. Step 4: Simplify right side
    352,851.40x = 162,929,506,187.58
  5. Step 5: Solve for x
    x = 162,929,506,187.58/352,851.40
  6. Step 6: Final answer
    x = 461,751.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.