Home / 1,778,115-2,667,406.86-579,617.40

Finding the Fourth Proportional to 1,778,115, 2,667,406.86 and 579,617.40

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Solution

The fourth proportional to 1,778,115, 2,667,406.86 and 579,617.40 is: 869,502.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,115 : 2,667,406.86 = 579,617.40 : x
  2. Step 2: Convert to fraction form
    1,778,115/2,667,406.86 = 579,617.40/x
  3. Step 3: Cross multiply
    1,778,115x = 2,667,406.86 × 579,617.40
  4. Step 4: Simplify right side
    1,778,115x = 1,546,075,428,935.36
  5. Step 5: Solve for x
    x = 1,546,075,428,935.36/1,778,115
  6. Step 6: Final answer
    x = 869,502.50

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Double scale
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1.5x scale

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.