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Finding the Fourth Proportional to 559,415.84, 772,285.56 and 434,960.96

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Solution

The fourth proportional to 559,415.84, 772,285.56 and 434,960.96 is: 600,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,415.84 : 772,285.56 = 434,960.96 : x
  2. Step 2: Convert to fraction form
    559,415.84/772,285.56 = 434,960.96/x
  3. Step 3: Cross multiply
    559,415.84x = 772,285.56 × 434,960.96
  4. Step 4: Simplify right side
    559,415.84x = 335,914,068,571.74
  5. Step 5: Solve for x
    x = 335,914,068,571.74/559,415.84
  6. Step 6: Final answer
    x = 600,472.93

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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.