Home / 921,764.16-1,382,646.24-290,727.18

Finding the Fourth Proportional to 921,764.16, 1,382,646.24 and 290,727.18

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Solution

The fourth proportional to 921,764.16, 1,382,646.24 and 290,727.18 is: 436,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,764.16 : 1,382,646.24 = 290,727.18 : x
  2. Step 2: Convert to fraction form
    921,764.16/1,382,646.24 = 290,727.18/x
  3. Step 3: Cross multiply
    921,764.16x = 1,382,646.24 × 290,727.18
  4. Step 4: Simplify right side
    921,764.16x = 401,972,842,292.80
  5. Step 5: Solve for x
    x = 401,972,842,292.80/921,764.16
  6. Step 6: Final answer
    x = 436,090.77

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