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Finding the Fourth Proportional to 419,018.36, 578,258.37 and 237,737.93

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Solution

The fourth proportional to 419,018.36, 578,258.37 and 237,737.93 is: 328,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,018.36 : 578,258.37 = 237,737.93 : x
  2. Step 2: Convert to fraction form
    419,018.36/578,258.37 = 237,737.93/x
  3. Step 3: Cross multiply
    419,018.36x = 578,258.37 × 237,737.93
  4. Step 4: Simplify right side
    419,018.36x = 137,473,944,997.68
  5. Step 5: Solve for x
    x = 137,473,944,997.68/419,018.36
  6. Step 6: Final answer
    x = 328,085.74

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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.