Home / 745,214.14-1,028,395.38-405,682.30

Finding the Fourth Proportional to 745,214.14, 1,028,395.38 and 405,682.30

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Solution

The fourth proportional to 745,214.14, 1,028,395.38 and 405,682.30 is: 559,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,214.14 : 1,028,395.38 = 405,682.30 : x
  2. Step 2: Convert to fraction form
    745,214.14/1,028,395.38 = 405,682.30/x
  3. Step 3: Cross multiply
    745,214.14x = 1,028,395.38 × 405,682.30
  4. Step 4: Simplify right side
    745,214.14x = 417,201,803,067.77
  5. Step 5: Solve for x
    x = 417,201,803,067.77/745,214.14
  6. Step 6: Final answer
    x = 559,841.50

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.