Home / 869,533.89-1,200,020.57-482,410.28

Finding the Fourth Proportional to 869,533.89, 1,200,020.57 and 482,410.28

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Solution

The fourth proportional to 869,533.89, 1,200,020.57 and 482,410.28 is: 665,761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,533.89 : 1,200,020.57 = 482,410.28 : x
  2. Step 2: Convert to fraction form
    869,533.89/1,200,020.57 = 482,410.28/x
  3. Step 3: Cross multiply
    869,533.89x = 1,200,020.57 × 482,410.28
  4. Step 4: Simplify right side
    869,533.89x = 578,902,261,576.50
  5. Step 5: Solve for x
    x = 578,902,261,576.50/869,533.89
  6. Step 6: Final answer
    x = 665,761.59

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Double scale
Find fourth proportional to 869,534.89, 1,200,021.95 and 482,411.28
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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.