Home / 451,299.05-623,075.86-290,433.66

Finding the Fourth Proportional to 451,299.05, 623,075.86 and 290,433.66

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Solution

The fourth proportional to 451,299.05, 623,075.86 and 290,433.66 is: 400,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,299.05 : 623,075.86 = 290,433.66 : x
  2. Step 2: Convert to fraction form
    451,299.05/623,075.86 = 290,433.66/x
  3. Step 3: Cross multiply
    451,299.05x = 623,075.86 × 290,433.66
  4. Step 4: Simplify right side
    451,299.05x = 180,962,202,477.45
  5. Step 5: Solve for x
    x = 180,962,202,477.45/451,299.05
  6. Step 6: Final answer
    x = 400,980.69

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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.