Home / 697,082,619.20-1,045,623,928.80-621,835,822.40

Finding the Fourth Proportional to 697,082,619.20, 1,045,623,928.80 and 621,835,822.40

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Solution

The fourth proportional to 697,082,619.20, 1,045,623,928.80 and 621,835,822.40 is: 932,753,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,082,619.20 : 1,045,623,928.80 = 621,835,822.40 : x
  2. Step 2: Convert to fraction form
    697,082,619.20/1,045,623,928.80 = 621,835,822.40/x
  3. Step 3: Cross multiply
    697,082,619.20x = 1,045,623,928.80 × 621,835,822.40
  4. Step 4: Simplify right side
    697,082,619.20x = 650,206,415,686,466,944
  5. Step 5: Solve for x
    x = 650,206,415,686,466,944/697,082,619.20
  6. Step 6: Final answer
    x = 932,753,733.60

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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.