Home / 935,506.68-1,290,998.88-505,786.68

Finding the Fourth Proportional to 935,506.68, 1,290,998.88 and 505,786.68

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Solution

The fourth proportional to 935,506.68, 1,290,998.88 and 505,786.68 is: 697,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,506.68 : 1,290,998.88 = 505,786.68 : x
  2. Step 2: Convert to fraction form
    935,506.68/1,290,998.88 = 505,786.68/x
  3. Step 3: Cross multiply
    935,506.68x = 1,290,998.88 × 505,786.68
  4. Step 4: Simplify right side
    935,506.68x = 652,970,037,398.92
  5. Step 5: Solve for x
    x = 652,970,037,398.92/935,506.68
  6. Step 6: Final answer
    x = 697,985.44

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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.