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Finding the Fourth Proportional to 611,112.40, 843,490.13 and 417,598.44

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Solution

The fourth proportional to 611,112.40, 843,490.13 and 417,598.44 is: 576,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,112.40 : 843,490.13 = 417,598.44 : x
  2. Step 2: Convert to fraction form
    611,112.40/843,490.13 = 417,598.44/x
  3. Step 3: Cross multiply
    611,112.40x = 843,490.13 × 417,598.44
  4. Step 4: Simplify right side
    611,112.40x = 352,240,157,192.32
  5. Step 5: Solve for x
    x = 352,240,157,192.32/611,112.40
  6. Step 6: Final answer
    x = 576,391.77

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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.