Home / 393,295,973.20-590,615,806.20-257,583,000.40

Finding the Fourth Proportional to 393,295,973.20, 590,615,806.20 and 257,583,000.40

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Solution

The fourth proportional to 393,295,973.20, 590,615,806.20 and 257,583,000.40 is: 386,814,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,295,973.20 : 590,615,806.20 = 257,583,000.40 : x
  2. Step 2: Convert to fraction form
    393,295,973.20/590,615,806.20 = 257,583,000.40/x
  3. Step 3: Cross multiply
    393,295,973.20x = 590,615,806.20 × 257,583,000.40
  4. Step 4: Simplify right side
    393,295,973.20x = 152,132,591,444,660,928
  5. Step 5: Solve for x
    x = 152,132,591,444,660,928/393,295,973.20
  6. Step 6: Final answer
    x = 386,814,515.81

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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.