Home / 385,923.96-578,833.40-101,590.72

Finding the Fourth Proportional to 385,923.96, 578,833.40 and 101,590.72

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Solution

The fourth proportional to 385,923.96, 578,833.40 and 101,590.72 is: 152,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,923.96 : 578,833.40 = 101,590.72 : x
  2. Step 2: Convert to fraction form
    385,923.96/578,833.40 = 101,590.72/x
  3. Step 3: Cross multiply
    385,923.96x = 578,833.40 × 101,590.72
  4. Step 4: Simplify right side
    385,923.96x = 58,804,101,866.05
  5. Step 5: Solve for x
    x = 58,804,101,866.05/385,923.96
  6. Step 6: Final answer
    x = 152,372.25

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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.