Home / 786,237.10-1,084,665.66-499,603.39

Finding the Fourth Proportional to 786,237.10, 1,084,665.66 and 499,603.39

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Solution

The fourth proportional to 786,237.10, 1,084,665.66 and 499,603.39 is: 689,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,237.10 : 1,084,665.66 = 499,603.39 : x
  2. Step 2: Convert to fraction form
    786,237.10/1,084,665.66 = 499,603.39/x
  3. Step 3: Cross multiply
    786,237.10x = 1,084,665.66 × 499,603.39
  4. Step 4: Simplify right side
    786,237.10x = 541,902,640,752.59
  5. Step 5: Solve for x
    x = 541,902,640,752.59/786,237.10
  6. Step 6: Final answer
    x = 689,235.65

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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.