Home / 1,768,123.20-2,652,184.80-438,427.20

Finding the Fourth Proportional to 1,768,123.20, 2,652,184.80 and 438,427.20

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Solution

The fourth proportional to 1,768,123.20, 2,652,184.80 and 438,427.20 is: 657,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,123.20 : 2,652,184.80 = 438,427.20 : x
  2. Step 2: Convert to fraction form
    1,768,123.20/2,652,184.80 = 438,427.20/x
  3. Step 3: Cross multiply
    1,768,123.20x = 2,652,184.80 × 438,427.20
  4. Step 4: Simplify right side
    1,768,123.20x = 1,162,789,955,746.56
  5. Step 5: Solve for x
    x = 1,162,789,955,746.56/1,768,123.20
  6. Step 6: Final answer
    x = 657,640.80

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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.