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Finding the Fourth Proportional to 575,674.06, 863,511.09 and 154,939

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Solution

The fourth proportional to 575,674.06, 863,511.09 and 154,939 is: 232,408.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,674.06 : 863,511.09 = 154,939 : x
  2. Step 2: Convert to fraction form
    575,674.06/863,511.09 = 154,939/x
  3. Step 3: Cross multiply
    575,674.06x = 863,511.09 × 154,939
  4. Step 4: Simplify right side
    575,674.06x = 133,791,544,773.51
  5. Step 5: Solve for x
    x = 133,791,544,773.51/575,674.06
  6. Step 6: Final answer
    x = 232,408.50

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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.