Home / 771,802,865.03-1,065,085,635.02-419,379,931.01

Finding the Fourth Proportional to 771,802,865.03, 1,065,085,635.02 and 419,379,931.01

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Solution

The fourth proportional to 771,802,865.03, 1,065,085,635.02 and 419,379,931.01 is: 578,743,044.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,802,865.03 : 1,065,085,635.02 = 419,379,931.01 : x
  2. Step 2: Convert to fraction form
    771,802,865.03/1,065,085,635.02 = 419,379,931.01/x
  3. Step 3: Cross multiply
    771,802,865.03x = 1,065,085,635.02 × 419,379,931.01
  4. Step 4: Simplify right side
    771,802,865.03x = 446,675,540,137,343,936
  5. Step 5: Solve for x
    x = 446,675,540,137,343,936/771,802,865.03
  6. Step 6: Final answer
    x = 578,743,044.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.