Home / 434,556.20-651,615.60-257,117.60

Finding the Fourth Proportional to 434,556.20, 651,615.60 and 257,117.60

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Solution

The fourth proportional to 434,556.20, 651,615.60 and 257,117.60 is: 385,547.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,556.20 : 651,615.60 = 257,117.60 : x
  2. Step 2: Convert to fraction form
    434,556.20/651,615.60 = 257,117.60/x
  3. Step 3: Cross multiply
    434,556.20x = 651,615.60 × 257,117.60
  4. Step 4: Simplify right side
    434,556.20x = 167,541,839,194.56
  5. Step 5: Solve for x
    x = 167,541,839,194.56/434,556.20
  6. Step 6: Final answer
    x = 385,547.00

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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.