Home / 1,119,717.40-1,679,576.10-409,817.20

Finding the Fourth Proportional to 1,119,717.40, 1,679,576.10 and 409,817.20

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Solution

The fourth proportional to 1,119,717.40, 1,679,576.10 and 409,817.20 is: 614,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,717.40 : 1,679,576.10 = 409,817.20 : x
  2. Step 2: Convert to fraction form
    1,119,717.40/1,679,576.10 = 409,817.20/x
  3. Step 3: Cross multiply
    1,119,717.40x = 1,679,576.10 × 409,817.20
  4. Step 4: Simplify right side
    1,119,717.40x = 688,319,174,488.92
  5. Step 5: Solve for x
    x = 688,319,174,488.92/1,119,717.40
  6. Step 6: Final answer
    x = 614,725.80

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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.