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Finding the Fourth Proportional to 570,712.95, 856,106.33 and 191,618.37

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Solution

The fourth proportional to 570,712.95, 856,106.33 and 191,618.37 is: 287,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,712.95 : 856,106.33 = 191,618.37 : x
  2. Step 2: Convert to fraction form
    570,712.95/856,106.33 = 191,618.37/x
  3. Step 3: Cross multiply
    570,712.95x = 856,106.33 × 191,618.37
  4. Step 4: Simplify right side
    570,712.95x = 164,045,698,543.19
  5. Step 5: Solve for x
    x = 164,045,698,543.19/570,712.95
  6. Step 6: Final answer
    x = 287,439.94

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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.