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Finding the Fourth Proportional to 611,601.64, 917,410.05 and 185,140.28

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Solution

The fourth proportional to 611,601.64, 917,410.05 and 185,140.28 is: 277,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,601.64 : 917,410.05 = 185,140.28 : x
  2. Step 2: Convert to fraction form
    611,601.64/917,410.05 = 185,140.28/x
  3. Step 3: Cross multiply
    611,601.64x = 917,410.05 × 185,140.28
  4. Step 4: Simplify right side
    611,601.64x = 169,849,555,825.34
  5. Step 5: Solve for x
    x = 169,849,555,825.34/611,601.64
  6. Step 6: Final answer
    x = 277,712.72

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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.