Home / 691,721.37-1,030,705.74-616,261.68

Finding the Fourth Proportional to 691,721.37, 1,030,705.74 and 616,261.68

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Solution

The fourth proportional to 691,721.37, 1,030,705.74 and 616,261.68 is: 918,266.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,721.37 : 1,030,705.74 = 616,261.68 : x
  2. Step 2: Convert to fraction form
    691,721.37/1,030,705.74 = 616,261.68/x
  3. Step 3: Cross multiply
    691,721.37x = 1,030,705.74 × 616,261.68
  4. Step 4: Simplify right side
    691,721.37x = 635,184,450,918.04
  5. Step 5: Solve for x
    x = 635,184,450,918.04/691,721.37
  6. Step 6: Final answer
    x = 918,266.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.