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Finding the Fourth Proportional to 582,445.34, 804,022.56 and 391,569.44

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Solution

The fourth proportional to 582,445.34, 804,022.56 and 391,569.44 is: 540,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,445.34 : 804,022.56 = 391,569.44 : x
  2. Step 2: Convert to fraction form
    582,445.34/804,022.56 = 391,569.44/x
  3. Step 3: Cross multiply
    582,445.34x = 804,022.56 × 391,569.44
  4. Step 4: Simplify right side
    582,445.34x = 314,830,663,566.57
  5. Step 5: Solve for x
    x = 314,830,663,566.57/582,445.34
  6. Step 6: Final answer
    x = 540,532.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.