Home / 647,511,205.30-971,266,807.95-534,137,125.30

Finding the Fourth Proportional to 647,511,205.30, 971,266,807.95 and 534,137,125.30

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Solution

The fourth proportional to 647,511,205.30, 971,266,807.95 and 534,137,125.30 is: 801,205,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,511,205.30 : 971,266,807.95 = 534,137,125.30 : x
  2. Step 2: Convert to fraction form
    647,511,205.30/971,266,807.95 = 534,137,125.30/x
  3. Step 3: Cross multiply
    647,511,205.30x = 971,266,807.95 × 534,137,125.30
  4. Step 4: Simplify right side
    647,511,205.30x = 518,789,660,697,720,192
  5. Step 5: Solve for x
    x = 518,789,660,697,720,192/647,511,205.30
  6. Step 6: Final answer
    x = 801,205,687.95

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Double scale
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Similar ratio
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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.