Home / 805,579.74-1,208,369.70-383,576.22

Finding the Fourth Proportional to 805,579.74, 1,208,369.70 and 383,576.22

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Solution

The fourth proportional to 805,579.74, 1,208,369.70 and 383,576.22 is: 575,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,579.74 : 1,208,369.70 = 383,576.22 : x
  2. Step 2: Convert to fraction form
    805,579.74/1,208,369.70 = 383,576.22/x
  3. Step 3: Cross multiply
    805,579.74x = 1,208,369.70 × 383,576.22
  4. Step 4: Simplify right side
    805,579.74x = 463,501,881,888.53
  5. Step 5: Solve for x
    x = 463,501,881,888.53/805,579.74
  6. Step 6: Final answer
    x = 575,364.37

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Double scale
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Similar ratio
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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.