Home / 904,804.89-1,247,938.79-614,640.21

Finding the Fourth Proportional to 904,804.89, 1,247,938.79 and 614,640.21

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Solution

The fourth proportional to 904,804.89, 1,247,938.79 and 614,640.21 is: 847,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,804.89 : 1,247,938.79 = 614,640.21 : x
  2. Step 2: Convert to fraction form
    904,804.89/1,247,938.79 = 614,640.21/x
  3. Step 3: Cross multiply
    904,804.89x = 1,247,938.79 × 614,640.21
  4. Step 4: Simplify right side
    904,804.89x = 767,033,356,879.55
  5. Step 5: Solve for x
    x = 767,033,356,879.55/904,804.89
  6. Step 6: Final answer
    x = 847,733.43

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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.