Home / 819,316.80-1,228,975.20-535,881.60

Finding the Fourth Proportional to 819,316.80, 1,228,975.20 and 535,881.60

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Solution

The fourth proportional to 819,316.80, 1,228,975.20 and 535,881.60 is: 803,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,316.80 : 1,228,975.20 = 535,881.60 : x
  2. Step 2: Convert to fraction form
    819,316.80/1,228,975.20 = 535,881.60/x
  3. Step 3: Cross multiply
    819,316.80x = 1,228,975.20 × 535,881.60
  4. Step 4: Simplify right side
    819,316.80x = 658,585,196,536.32
  5. Step 5: Solve for x
    x = 658,585,196,536.32/819,316.80
  6. Step 6: Final answer
    x = 803,822.40

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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.