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Finding the Fourth Proportional to 324,068.48, 447,147.70 and 186,220.76

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Solution

The fourth proportional to 324,068.48, 447,147.70 and 186,220.76 is: 256,946.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,068.48 : 447,147.70 = 186,220.76 : x
  2. Step 2: Convert to fraction form
    324,068.48/447,147.70 = 186,220.76/x
  3. Step 3: Cross multiply
    324,068.48x = 447,147.70 × 186,220.76
  4. Step 4: Simplify right side
    324,068.48x = 83,268,184,526.25
  5. Step 5: Solve for x
    x = 83,268,184,526.25/324,068.48
  6. Step 6: Final answer
    x = 256,946.26

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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.