Home / 931,857.86-1,286,069.73-518,435.58

Finding the Fourth Proportional to 931,857.86, 1,286,069.73 and 518,435.58

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Solution

The fourth proportional to 931,857.86, 1,286,069.73 and 518,435.58 is: 715,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,857.86 : 1,286,069.73 = 518,435.58 : x
  2. Step 2: Convert to fraction form
    931,857.86/1,286,069.73 = 518,435.58/x
  3. Step 3: Cross multiply
    931,857.86x = 1,286,069.73 × 518,435.58
  4. Step 4: Simplify right side
    931,857.86x = 666,744,306,392.99
  5. Step 5: Solve for x
    x = 666,744,306,392.99/931,857.86
  6. Step 6: Final answer
    x = 715,500.01

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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.