Home / 579,195.41-798,815.71-407,681.15

Finding the Fourth Proportional to 579,195.41, 798,815.71 and 407,681.15

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Solution

The fourth proportional to 579,195.41, 798,815.71 and 407,681.15 is: 562,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,195.41 : 798,815.71 = 407,681.15 : x
  2. Step 2: Convert to fraction form
    579,195.41/798,815.71 = 407,681.15/x
  3. Step 3: Cross multiply
    579,195.41x = 798,815.71 × 407,681.15
  4. Step 4: Simplify right side
    579,195.41x = 325,662,107,290.87
  5. Step 5: Solve for x
    x = 325,662,107,290.87/579,195.41
  6. Step 6: Final answer
    x = 562,266.38

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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.