Home / 830,405.10-1,245,607.65-531,806.70

Finding the Fourth Proportional to 830,405.10, 1,245,607.65 and 531,806.70

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Solution

The fourth proportional to 830,405.10, 1,245,607.65 and 531,806.70 is: 797,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,405.10 : 1,245,607.65 = 531,806.70 : x
  2. Step 2: Convert to fraction form
    830,405.10/1,245,607.65 = 531,806.70/x
  3. Step 3: Cross multiply
    830,405.10x = 1,245,607.65 × 531,806.70
  4. Step 4: Simplify right side
    830,405.10x = 662,422,493,841.26
  5. Step 5: Solve for x
    x = 662,422,493,841.26/830,405.10
  6. Step 6: Final answer
    x = 797,710.05

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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.