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Finding the Fourth Proportional to 569,964, 786,864.24 and 426,672.48

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Solution

The fourth proportional to 569,964, 786,864.24 and 426,672.48 is: 589,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,964 : 786,864.24 = 426,672.48 : x
  2. Step 2: Convert to fraction form
    569,964/786,864.24 = 426,672.48/x
  3. Step 3: Cross multiply
    569,964x = 786,864.24 × 426,672.48
  4. Step 4: Simplify right side
    569,964x = 335,733,316,704.12
  5. Step 5: Solve for x
    x = 335,733,316,704.12/569,964
  6. Step 6: Final answer
    x = 589,043.02

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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.