Home / 613,117.60-919,192.56-258,186.40

Finding the Fourth Proportional to 613,117.60, 919,192.56 and 258,186.40

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Solution

The fourth proportional to 613,117.60, 919,192.56 and 258,186.40 is: 387,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,117.60 : 919,192.56 = 258,186.40 : x
  2. Step 2: Convert to fraction form
    613,117.60/919,192.56 = 258,186.40/x
  3. Step 3: Cross multiply
    613,117.60x = 919,192.56 × 258,186.40
  4. Step 4: Simplify right side
    613,117.60x = 237,323,017,973.18
  5. Step 5: Solve for x
    x = 237,323,017,973.18/613,117.60
  6. Step 6: Final answer
    x = 387,075.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.