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Finding the Fourth Proportional to 434,505.51, 599,616.81 and 243,518.85

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Solution

The fourth proportional to 434,505.51, 599,616.81 and 243,518.85 is: 336,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,505.51 : 599,616.81 = 243,518.85 : x
  2. Step 2: Convert to fraction form
    434,505.51/599,616.81 = 243,518.85/x
  3. Step 3: Cross multiply
    434,505.51x = 599,616.81 × 243,518.85
  4. Step 4: Simplify right side
    434,505.51x = 146,017,996,011.87
  5. Step 5: Solve for x
    x = 146,017,996,011.87/434,505.51
  6. Step 6: Final answer
    x = 336,055.57

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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.