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Finding the Fourth Proportional to 623,798,269.80, 935,697,404.70 and 163,782,940.20

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Solution

The fourth proportional to 623,798,269.80, 935,697,404.70 and 163,782,940.20 is: 245,674,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,798,269.80 : 935,697,404.70 = 163,782,940.20 : x
  2. Step 2: Convert to fraction form
    623,798,269.80/935,697,404.70 = 163,782,940.20/x
  3. Step 3: Cross multiply
    623,798,269.80x = 935,697,404.70 × 163,782,940.20
  4. Step 4: Simplify right side
    623,798,269.80x = 153,251,272,079,275,296
  5. Step 5: Solve for x
    x = 153,251,272,079,275,296/623,798,269.80
  6. Step 6: Final answer
    x = 245,674,410.30

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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.