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Finding the Fourth Proportional to 569,966, 786,867 and 426,674.48

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Solution

The fourth proportional to 569,966, 786,867 and 426,674.48 is: 589,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,966 : 786,867 = 426,674.48 : x
  2. Step 2: Convert to fraction form
    569,966/786,867 = 426,674.48/x
  3. Step 3: Cross multiply
    569,966x = 786,867 × 426,674.48
  4. Step 4: Simplify right side
    569,966x = 335,736,068,054.16
  5. Step 5: Solve for x
    x = 335,736,068,054.16/569,966
  6. Step 6: Final answer
    x = 589,045.78

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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.