Home / 904,029.90-1,247,478.67-536,443.56

Finding the Fourth Proportional to 904,029.90, 1,247,478.67 and 536,443.56

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Solution

The fourth proportional to 904,029.90, 1,247,478.67 and 536,443.56 is: 740,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,029.90 : 1,247,478.67 = 536,443.56 : x
  2. Step 2: Convert to fraction form
    904,029.90/1,247,478.67 = 536,443.56/x
  3. Step 3: Cross multiply
    904,029.90x = 1,247,478.67 × 536,443.56
  4. Step 4: Simplify right side
    904,029.90x = 669,201,899,429.42
  5. Step 5: Solve for x
    x = 669,201,899,429.42/904,029.90
  6. Step 6: Final answer
    x = 740,243.11

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Double scale
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Similar ratio
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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.