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Finding the Fourth Proportional to 582,506.40, 873,759.60 and 385,514.40

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Solution

The fourth proportional to 582,506.40, 873,759.60 and 385,514.40 is: 578,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,506.40 : 873,759.60 = 385,514.40 : x
  2. Step 2: Convert to fraction form
    582,506.40/873,759.60 = 385,514.40/x
  3. Step 3: Cross multiply
    582,506.40x = 873,759.60 × 385,514.40
  4. Step 4: Simplify right side
    582,506.40x = 336,846,907,938.24
  5. Step 5: Solve for x
    x = 336,846,907,938.24/582,506.40
  6. Step 6: Final answer
    x = 578,271.60

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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.