Home / 913,897.27-1,261,217.64-505,999.10

Finding the Fourth Proportional to 913,897.27, 1,261,217.64 and 505,999.10

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Solution

The fourth proportional to 913,897.27, 1,261,217.64 and 505,999.10 is: 698,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,897.27 : 1,261,217.64 = 505,999.10 : x
  2. Step 2: Convert to fraction form
    913,897.27/1,261,217.64 = 505,999.10/x
  3. Step 3: Cross multiply
    913,897.27x = 1,261,217.64 × 505,999.10
  4. Step 4: Simplify right side
    913,897.27x = 638,174,990,744.12
  5. Step 5: Solve for x
    x = 638,174,990,744.12/913,897.27
  6. Step 6: Final answer
    x = 698,300.58

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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.