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Finding the Fourth Proportional to 434,696.40, 599,905.80 and 243,700.56

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Solution

The fourth proportional to 434,696.40, 599,905.80 and 243,700.56 is: 336,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,696.40 : 599,905.80 = 243,700.56 : x
  2. Step 2: Convert to fraction form
    434,696.40/599,905.80 = 243,700.56/x
  3. Step 3: Cross multiply
    434,696.40x = 599,905.80 × 243,700.56
  4. Step 4: Simplify right side
    434,696.40x = 146,197,379,407.25
  5. Step 5: Solve for x
    x = 146,197,379,407.25/434,696.40
  6. Step 6: Final answer
    x = 336,320.66

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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.