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Finding the Fourth Proportional to 1,437,485,128.02, 1,983,729,461.31 and 777,435,406.02

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Solution

The fourth proportional to 1,437,485,128.02, 1,983,729,461.31 and 777,435,406.02 is: 1,072,860,852.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,485,128.02 : 1,983,729,461.31 = 777,435,406.02 : x
  2. Step 2: Convert to fraction form
    1,437,485,128.02/1,983,729,461.31 = 777,435,406.02/x
  3. Step 3: Cross multiply
    1,437,485,128.02x = 1,983,729,461.31 × 777,435,406.02
  4. Step 4: Simplify right side
    1,437,485,128.02x = 1,542,221,519,187,375,616
  5. Step 5: Solve for x
    x = 1,542,221,519,187,375,616/1,437,485,128.02
  6. Step 6: Final answer
    x = 1,072,860,852.00

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1.5x scale

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.