Home / 1,091,382.40-1,636,674.48-417,130.30

Finding the Fourth Proportional to 1,091,382.40, 1,636,674.48 and 417,130.30

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Solution

The fourth proportional to 1,091,382.40, 1,636,674.48 and 417,130.30 is: 625,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,382.40 : 1,636,674.48 = 417,130.30 : x
  2. Step 2: Convert to fraction form
    1,091,382.40/1,636,674.48 = 417,130.30/x
  3. Step 3: Cross multiply
    1,091,382.40x = 1,636,674.48 × 417,130.30
  4. Step 4: Simplify right side
    1,091,382.40x = 682,706,516,844.74
  5. Step 5: Solve for x
    x = 682,706,516,844.74/1,091,382.40
  6. Step 6: Final answer
    x = 625,542.90

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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.