Home / 583,905.42-805,790.10-342,139.86

Finding the Fourth Proportional to 583,905.42, 805,790.10 and 342,139.86

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Solution

The fourth proportional to 583,905.42, 805,790.10 and 342,139.86 is: 472,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,905.42 : 805,790.10 = 342,139.86 : x
  2. Step 2: Convert to fraction form
    583,905.42/805,790.10 = 342,139.86/x
  3. Step 3: Cross multiply
    583,905.42x = 805,790.10 × 342,139.86
  4. Step 4: Simplify right side
    583,905.42x = 275,692,912,003.39
  5. Step 5: Solve for x
    x = 275,692,912,003.39/583,905.42
  6. Step 6: Final answer
    x = 472,153.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.