Home / 286,983.76-430,477.80-99,994.96

Finding the Fourth Proportional to 286,983.76, 430,477.80 and 99,994.96

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Solution

The fourth proportional to 286,983.76, 430,477.80 and 99,994.96 is: 149,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,983.76 : 430,477.80 = 99,994.96 : x
  2. Step 2: Convert to fraction form
    286,983.76/430,477.80 = 99,994.96/x
  3. Step 3: Cross multiply
    286,983.76x = 430,477.80 × 99,994.96
  4. Step 4: Simplify right side
    286,983.76x = 43,045,610,391.89
  5. Step 5: Solve for x
    x = 43,045,610,391.89/286,983.76
  6. Step 6: Final answer
    x = 149,993.19

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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.