Home / 901,554.65-1,244,228.87-499,146.65

Finding the Fourth Proportional to 901,554.65, 1,244,228.87 and 499,146.65

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Solution

The fourth proportional to 901,554.65, 1,244,228.87 and 499,146.65 is: 688,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,554.65 : 1,244,228.87 = 499,146.65 : x
  2. Step 2: Convert to fraction form
    901,554.65/1,244,228.87 = 499,146.65/x
  3. Step 3: Cross multiply
    901,554.65x = 1,244,228.87 × 499,146.65
  4. Step 4: Simplify right side
    901,554.65x = 621,052,667,320.51
  5. Step 5: Solve for x
    x = 621,052,667,320.51/901,554.65
  6. Step 6: Final answer
    x = 688,868.58

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Double scale
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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.