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Finding the Fourth Proportional to 582,807.60, 874,211.40 and 346,028.40

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Solution

The fourth proportional to 582,807.60, 874,211.40 and 346,028.40 is: 519,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,807.60 : 874,211.40 = 346,028.40 : x
  2. Step 2: Convert to fraction form
    582,807.60/874,211.40 = 346,028.40/x
  3. Step 3: Cross multiply
    582,807.60x = 874,211.40 × 346,028.40
  4. Step 4: Simplify right side
    582,807.60x = 302,501,972,003.76
  5. Step 5: Solve for x
    x = 302,501,972,003.76/582,807.60
  6. Step 6: Final answer
    x = 519,042.60

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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.