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Finding the Fourth Proportional to 586,427.80, 879,641.70 and 582,928.60

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Solution

The fourth proportional to 586,427.80, 879,641.70 and 582,928.60 is: 874,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,427.80 : 879,641.70 = 582,928.60 : x
  2. Step 2: Convert to fraction form
    586,427.80/879,641.70 = 582,928.60/x
  3. Step 3: Cross multiply
    586,427.80x = 879,641.70 × 582,928.60
  4. Step 4: Simplify right side
    586,427.80x = 512,768,304,682.62
  5. Step 5: Solve for x
    x = 512,768,304,682.62/586,427.80
  6. Step 6: Final answer
    x = 874,392.90

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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.