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Finding the Fourth Proportional to 662,488,356.60, 993,779,774.10 and 202,425,787.80

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Solution

The fourth proportional to 662,488,356.60, 993,779,774.10 and 202,425,787.80 is: 303,653,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,488,356.60 : 993,779,774.10 = 202,425,787.80 : x
  2. Step 2: Convert to fraction form
    662,488,356.60/993,779,774.10 = 202,425,787.80/x
  3. Step 3: Cross multiply
    662,488,356.60x = 993,779,774.10 × 202,425,787.80
  4. Step 4: Simplify right side
    662,488,356.60x = 201,166,653,671,898,560
  5. Step 5: Solve for x
    x = 201,166,653,671,898,560/662,488,356.60
  6. Step 6: Final answer
    x = 303,653,115.81

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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.