Home / 385,768.20-578,652.30-101,458.20

Finding the Fourth Proportional to 385,768.20, 578,652.30 and 101,458.20

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Solution

The fourth proportional to 385,768.20, 578,652.30 and 101,458.20 is: 152,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,768.20 : 578,652.30 = 101,458.20 : x
  2. Step 2: Convert to fraction form
    385,768.20/578,652.30 = 101,458.20/x
  3. Step 3: Cross multiply
    385,768.20x = 578,652.30 × 101,458.20
  4. Step 4: Simplify right side
    385,768.20x = 58,709,020,783.86
  5. Step 5: Solve for x
    x = 58,709,020,783.86/385,768.20
  6. Step 6: Final answer
    x = 152,187.30

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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.