Home / 1,212,603.40-1,818,905.02-538,526.12

Finding the Fourth Proportional to 1,212,603.40, 1,818,905.02 and 538,526.12

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Solution

The fourth proportional to 1,212,603.40, 1,818,905.02 and 538,526.12 is: 807,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,603.40 : 1,818,905.02 = 538,526.12 : x
  2. Step 2: Convert to fraction form
    1,212,603.40/1,818,905.02 = 538,526.12/x
  3. Step 3: Cross multiply
    1,212,603.40x = 1,818,905.02 × 538,526.12
  4. Step 4: Simplify right side
    1,212,603.40x = 979,527,863,069.12
  5. Step 5: Solve for x
    x = 979,527,863,069.12/1,212,603.40
  6. Step 6: Final answer
    x = 807,789.14

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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.