Home / 647,694,518.10-971,541,777.15-634,780,501.80

Finding the Fourth Proportional to 647,694,518.10, 971,541,777.15 and 634,780,501.80

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Solution

The fourth proportional to 647,694,518.10, 971,541,777.15 and 634,780,501.80 is: 952,170,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,694,518.10 : 971,541,777.15 = 634,780,501.80 : x
  2. Step 2: Convert to fraction form
    647,694,518.10/971,541,777.15 = 634,780,501.80/x
  3. Step 3: Cross multiply
    647,694,518.10x = 971,541,777.15 × 634,780,501.80
  4. Step 4: Simplify right side
    647,694,518.10x = 616,715,776,818,940,672
  5. Step 5: Solve for x
    x = 616,715,776,818,940,672/647,694,518.10
  6. Step 6: Final answer
    x = 952,170,752.70

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Double scale
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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.