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Finding the Fourth Proportional to 971,561.80, 1,457,342.70 and 908,576.20

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Solution

The fourth proportional to 971,561.80, 1,457,342.70 and 908,576.20 is: 1,362,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,561.80 : 1,457,342.70 = 908,576.20 : x
  2. Step 2: Convert to fraction form
    971,561.80/1,457,342.70 = 908,576.20/x
  3. Step 3: Cross multiply
    971,561.80x = 1,457,342.70 × 908,576.20
  4. Step 4: Simplify right side
    971,561.80x = 1,324,106,892,463.74
  5. Step 5: Solve for x
    x = 1,324,106,892,463.74/971,561.80
  6. Step 6: Final answer
    x = 1,362,864.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.