Home / 913,897.77-1,261,218.33-505,999.61

Finding the Fourth Proportional to 913,897.77, 1,261,218.33 and 505,999.61

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Solution

The fourth proportional to 913,897.77, 1,261,218.33 and 505,999.61 is: 698,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,897.77 : 1,261,218.33 = 505,999.61 : x
  2. Step 2: Convert to fraction form
    913,897.77/1,261,218.33 = 505,999.61/x
  3. Step 3: Cross multiply
    913,897.77x = 1,261,218.33 × 505,999.61
  4. Step 4: Simplify right side
    913,897.77x = 638,175,976,798.76
  5. Step 5: Solve for x
    x = 638,175,976,798.76/913,897.77
  6. Step 6: Final answer
    x = 698,301.27

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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.