Home / 398,590,975.20-597,886,462.80-343,108,534.80

Finding the Fourth Proportional to 398,590,975.20, 597,886,462.80 and 343,108,534.80

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Solution

The fourth proportional to 398,590,975.20, 597,886,462.80 and 343,108,534.80 is: 514,662,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,590,975.20 : 597,886,462.80 = 343,108,534.80 : x
  2. Step 2: Convert to fraction form
    398,590,975.20/597,886,462.80 = 343,108,534.80/x
  3. Step 3: Cross multiply
    398,590,975.20x = 597,886,462.80 × 343,108,534.80
  4. Step 4: Simplify right side
    398,590,975.20x = 205,139,948,228,062,688
  5. Step 5: Solve for x
    x = 205,139,948,228,062,688/398,590,975.20
  6. Step 6: Final answer
    x = 514,662,802.20

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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.