Home / 398,541,605.40-597,812,408.10-353,191,973.40

Finding the Fourth Proportional to 398,541,605.40, 597,812,408.10 and 353,191,973.40

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Solution

The fourth proportional to 398,541,605.40, 597,812,408.10 and 353,191,973.40 is: 529,787,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,541,605.40 : 597,812,408.10 = 353,191,973.40 : x
  2. Step 2: Convert to fraction form
    398,541,605.40/597,812,408.10 = 353,191,973.40/x
  3. Step 3: Cross multiply
    398,541,605.40x = 597,812,408.10 × 353,191,973.40
  4. Step 4: Simplify right side
    398,541,605.40x = 211,142,544,139,845,152
  5. Step 5: Solve for x
    x = 211,142,544,139,845,152/398,541,605.40
  6. Step 6: Final answer
    x = 529,787,960.10

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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.