Home / 398,641,330.80-597,961,996.20-353,291,698.80

Finding the Fourth Proportional to 398,641,330.80, 597,961,996.20 and 353,291,698.80

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Solution

The fourth proportional to 398,641,330.80, 597,961,996.20 and 353,291,698.80 is: 529,937,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,641,330.80 : 597,961,996.20 = 353,291,698.80 : x
  2. Step 2: Convert to fraction form
    398,641,330.80/597,961,996.20 = 353,291,698.80/x
  3. Step 3: Cross multiply
    398,641,330.80x = 597,961,996.20 × 353,291,698.80
  4. Step 4: Simplify right side
    398,641,330.80x = 211,255,009,455,337,184
  5. Step 5: Solve for x
    x = 211,255,009,455,337,184/398,641,330.80
  6. Step 6: Final answer
    x = 529,937,548.20

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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.