Home / 738,465.06-1,019,135.54-411,800.16

Finding the Fourth Proportional to 738,465.06, 1,019,135.54 and 411,800.16

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Solution

The fourth proportional to 738,465.06, 1,019,135.54 and 411,800.16 is: 568,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,465.06 : 1,019,135.54 = 411,800.16 : x
  2. Step 2: Convert to fraction form
    738,465.06/1,019,135.54 = 411,800.16/x
  3. Step 3: Cross multiply
    738,465.06x = 1,019,135.54 × 411,800.16
  4. Step 4: Simplify right side
    738,465.06x = 419,680,179,463.19
  5. Step 5: Solve for x
    x = 419,680,179,463.19/738,465.06
  6. Step 6: Final answer
    x = 568,314.20

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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.