Home / 866,280.40-1,293,075.62-764,016.28

Finding the Fourth Proportional to 866,280.40, 1,293,075.62 and 764,016.28

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Solution

The fourth proportional to 866,280.40, 1,293,075.62 and 764,016.28 is: 1,140,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,280.40 : 1,293,075.62 = 764,016.28 : x
  2. Step 2: Convert to fraction form
    866,280.40/1,293,075.62 = 764,016.28/x
  3. Step 3: Cross multiply
    866,280.40x = 1,293,075.62 × 764,016.28
  4. Step 4: Simplify right side
    866,280.40x = 987,930,820,763.38
  5. Step 5: Solve for x
    x = 987,930,820,763.38/866,280.40
  6. Step 6: Final answer
    x = 1,140,428.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.