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Finding the Fourth Proportional to 582,679.60, 874,019.40 and 346,289.20

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Solution

The fourth proportional to 582,679.60, 874,019.40 and 346,289.20 is: 519,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,679.60 : 874,019.40 = 346,289.20 : x
  2. Step 2: Convert to fraction form
    582,679.60/874,019.40 = 346,289.20/x
  3. Step 3: Cross multiply
    582,679.60x = 874,019.40 × 346,289.20
  4. Step 4: Simplify right side
    582,679.60x = 302,663,478,810.48
  5. Step 5: Solve for x
    x = 302,663,478,810.48/582,679.60
  6. Step 6: Final answer
    x = 519,433.80

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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.