Home / 1,778,117-2,667,409.86-579,619.40

Finding the Fourth Proportional to 1,778,117, 2,667,409.86 and 579,619.40

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Solution

The fourth proportional to 1,778,117, 2,667,409.86 and 579,619.40 is: 869,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,117 : 2,667,409.86 = 579,619.40 : x
  2. Step 2: Convert to fraction form
    1,778,117/2,667,409.86 = 579,619.40/x
  3. Step 3: Cross multiply
    1,778,117x = 2,667,409.86 × 579,619.40
  4. Step 4: Simplify right side
    1,778,117x = 1,546,082,502,607.28
  5. Step 5: Solve for x
    x = 1,546,082,502,607.28/1,778,117
  6. Step 6: Final answer
    x = 869,505.50

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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.