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Finding the Fourth Proportional to 611,794.06, 917,822.28 and 256,603.36

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Solution

The fourth proportional to 611,794.06, 917,822.28 and 256,603.36 is: 384,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,794.06 : 917,822.28 = 256,603.36 : x
  2. Step 2: Convert to fraction form
    611,794.06/917,822.28 = 256,603.36/x
  3. Step 3: Cross multiply
    611,794.06x = 917,822.28 × 256,603.36
  4. Step 4: Simplify right side
    611,794.06x = 235,516,280,930.86
  5. Step 5: Solve for x
    x = 235,516,280,930.86/611,794.06
  6. Step 6: Final answer
    x = 384,960.06

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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.