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Finding the Fourth Proportional to 611,661.82, 917,492.74 and 190,973.74

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Solution

The fourth proportional to 611,661.82, 917,492.74 and 190,973.74 is: 286,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,661.82 : 917,492.74 = 190,973.74 : x
  2. Step 2: Convert to fraction form
    611,661.82/917,492.74 = 190,973.74/x
  3. Step 3: Cross multiply
    611,661.82x = 917,492.74 × 190,973.74
  4. Step 4: Simplify right side
    611,661.82x = 175,217,019,980.65
  5. Step 5: Solve for x
    x = 175,217,019,980.65/611,661.82
  6. Step 6: Final answer
    x = 286,460.61

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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.