Home / 656,216-905,971.74-430,255.16

Finding the Fourth Proportional to 656,216, 905,971.74 and 430,255.16

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Solution

The fourth proportional to 656,216, 905,971.74 and 430,255.16 is: 594,010.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,216 : 905,971.74 = 430,255.16 : x
  2. Step 2: Convert to fraction form
    656,216/905,971.74 = 430,255.16/x
  3. Step 3: Cross multiply
    656,216x = 905,971.74 × 430,255.16
  4. Step 4: Simplify right side
    656,216x = 389,799,015,949.18
  5. Step 5: Solve for x
    x = 389,799,015,949.18/656,216
  6. Step 6: Final answer
    x = 594,010.23

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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.