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Finding the Fourth Proportional to 653,202,001.80, 979,803,002.70 and 648,667,038.60

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Solution

The fourth proportional to 653,202,001.80, 979,803,002.70 and 648,667,038.60 is: 973,000,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,202,001.80 : 979,803,002.70 = 648,667,038.60 : x
  2. Step 2: Convert to fraction form
    653,202,001.80/979,803,002.70 = 648,667,038.60/x
  3. Step 3: Cross multiply
    653,202,001.80x = 979,803,002.70 × 648,667,038.60
  4. Step 4: Simplify right side
    653,202,001.80x = 635,565,912,172,796,800
  5. Step 5: Solve for x
    x = 635,565,912,172,796,800/653,202,001.80
  6. Step 6: Final answer
    x = 973,000,557.90

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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.