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Finding the Fourth Proportional to 354,295,359.30, 531,443,038.95 and 354,295,359.30

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Solution

The fourth proportional to 354,295,359.30, 531,443,038.95 and 354,295,359.30 is: 531,443,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,359.30 : 531,443,038.95 = 354,295,359.30 : x
  2. Step 2: Convert to fraction form
    354,295,359.30/531,443,038.95 = 354,295,359.30/x
  3. Step 3: Cross multiply
    354,295,359.30x = 531,443,038.95 × 354,295,359.30
  4. Step 4: Simplify right side
    354,295,359.30x = 188,287,802,432,274,144
  5. Step 5: Solve for x
    x = 188,287,802,432,274,144/354,295,359.30
  6. Step 6: Final answer
    x = 531,443,038.95

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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.