Home / 826,028-1,140,319.08-553,996.40

Finding the Fourth Proportional to 826,028, 1,140,319.08 and 553,996.40

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Solution

The fourth proportional to 826,028, 1,140,319.08 and 553,996.40 is: 764,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,028 : 1,140,319.08 = 553,996.40 : x
  2. Step 2: Convert to fraction form
    826,028/1,140,319.08 = 553,996.40/x
  3. Step 3: Cross multiply
    826,028x = 1,140,319.08 × 553,996.40
  4. Step 4: Simplify right side
    826,028x = 631,732,665,171.31
  5. Step 5: Solve for x
    x = 631,732,665,171.31/826,028
  6. Step 6: Final answer
    x = 764,783.60

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Similar ratio
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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.