Home / 663,552,711.40-995,329,067.10-636,678,855.40

Finding the Fourth Proportional to 663,552,711.40, 995,329,067.10 and 636,678,855.40

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Solution

The fourth proportional to 663,552,711.40, 995,329,067.10 and 636,678,855.40 is: 955,018,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,711.40 : 995,329,067.10 = 636,678,855.40 : x
  2. Step 2: Convert to fraction form
    663,552,711.40/995,329,067.10 = 636,678,855.40/x
  3. Step 3: Cross multiply
    663,552,711.40x = 995,329,067.10 × 636,678,855.40
  4. Step 4: Simplify right side
    663,552,711.40x = 633,704,971,187,577,728
  5. Step 5: Solve for x
    x = 633,704,971,187,577,728/663,552,711.40
  6. Step 6: Final answer
    x = 955,018,283.10

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Double scale
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Similar ratio
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1.5x scale

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.