Home / 913,897.53-1,261,217.99-505,999.35

Finding the Fourth Proportional to 913,897.53, 1,261,217.99 and 505,999.35

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Solution

The fourth proportional to 913,897.53, 1,261,217.99 and 505,999.35 is: 698,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,897.53 : 1,261,217.99 = 505,999.35 : x
  2. Step 2: Convert to fraction form
    913,897.53/1,261,217.99 = 505,999.35/x
  3. Step 3: Cross multiply
    913,897.53x = 1,261,217.99 × 505,999.35
  4. Step 4: Simplify right side
    913,897.53x = 638,175,483,148.31
  5. Step 5: Solve for x
    x = 638,175,483,148.31/913,897.53
  6. Step 6: Final answer
    x = 698,300.92

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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.