Home / 661,617.40-913,237.59-525,892.18

Finding the Fourth Proportional to 661,617.40, 913,237.59 and 525,892.18

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Solution

The fourth proportional to 661,617.40, 913,237.59 and 525,892.18 is: 725,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,617.40 : 913,237.59 = 525,892.18 : x
  2. Step 2: Convert to fraction form
    661,617.40/913,237.59 = 525,892.18/x
  3. Step 3: Cross multiply
    661,617.40x = 913,237.59 × 525,892.18
  4. Step 4: Simplify right side
    661,617.40x = 480,264,507,063.05
  5. Step 5: Solve for x
    x = 480,264,507,063.05/661,617.40
  6. Step 6: Final answer
    x = 725,894.61

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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.