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Finding the Fourth Proportional to 570,975.16, 856,476.78 and 191,901.64

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Solution

The fourth proportional to 570,975.16, 856,476.78 and 191,901.64 is: 287,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,975.16 : 856,476.78 = 191,901.64 : x
  2. Step 2: Convert to fraction form
    570,975.16/856,476.78 = 191,901.64/x
  3. Step 3: Cross multiply
    570,975.16x = 856,476.78 × 191,901.64
  4. Step 4: Simplify right side
    570,975.16x = 164,359,298,703.92
  5. Step 5: Solve for x
    x = 164,359,298,703.92/570,975.16
  6. Step 6: Final answer
    x = 287,857.18

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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.