Home / 661,619.40-913,240.35-525,894.18

Finding the Fourth Proportional to 661,619.40, 913,240.35 and 525,894.18

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Solution

The fourth proportional to 661,619.40, 913,240.35 and 525,894.18 is: 725,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,619.40 : 913,240.35 = 525,894.18 : x
  2. Step 2: Convert to fraction form
    661,619.40/913,240.35 = 525,894.18/x
  3. Step 3: Cross multiply
    661,619.40x = 913,240.35 × 525,894.18
  4. Step 4: Simplify right side
    661,619.40x = 480,267,785,006.16
  5. Step 5: Solve for x
    x = 480,267,785,006.16/661,619.40
  6. Step 6: Final answer
    x = 725,897.37

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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.