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Finding the Fourth Proportional to 582,445.60, 873,668.40 and 345,666.40

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Solution

The fourth proportional to 582,445.60, 873,668.40 and 345,666.40 is: 518,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,445.60 : 873,668.40 = 345,666.40 : x
  2. Step 2: Convert to fraction form
    582,445.60/873,668.40 = 345,666.40/x
  3. Step 3: Cross multiply
    582,445.60x = 873,668.40 × 345,666.40
  4. Step 4: Simplify right side
    582,445.60x = 301,997,810,621.76
  5. Step 5: Solve for x
    x = 301,997,810,621.76/582,445.60
  6. Step 6: Final answer
    x = 518,499.60

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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.