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Finding the Fourth Proportional to 352,485.47, 486,430.56 and 191,340.63

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Solution

The fourth proportional to 352,485.47, 486,430.56 and 191,340.63 is: 264,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,485.47 : 486,430.56 = 191,340.63 : x
  2. Step 2: Convert to fraction form
    352,485.47/486,430.56 = 191,340.63/x
  3. Step 3: Cross multiply
    352,485.47x = 486,430.56 × 191,340.63
  4. Step 4: Simplify right side
    352,485.47x = 93,073,927,369.50
  5. Step 5: Solve for x
    x = 93,073,927,369.50/352,485.47
  6. Step 6: Final answer
    x = 264,050.39

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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.