Home / 1,069,560.38-1,475,853-639,683.66

Finding the Fourth Proportional to 1,069,560.38, 1,475,853 and 639,683.66

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Solution

The fourth proportional to 1,069,560.38, 1,475,853 and 639,683.66 is: 882,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,560.38 : 1,475,853 = 639,683.66 : x
  2. Step 2: Convert to fraction form
    1,069,560.38/1,475,853 = 639,683.66/x
  3. Step 3: Cross multiply
    1,069,560.38x = 1,475,853 × 639,683.66
  4. Step 4: Simplify right side
    1,069,560.38x = 944,079,048,661.98
  5. Step 5: Solve for x
    x = 944,079,048,661.98/1,069,560.38
  6. Step 6: Final answer
    x = 882,679.53

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Double scale
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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.