Home / 806,552.80-1,209,829.20-526,386.40

Finding the Fourth Proportional to 806,552.80, 1,209,829.20 and 526,386.40

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Solution

The fourth proportional to 806,552.80, 1,209,829.20 and 526,386.40 is: 789,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,552.80 : 1,209,829.20 = 526,386.40 : x
  2. Step 2: Convert to fraction form
    806,552.80/1,209,829.20 = 526,386.40/x
  3. Step 3: Cross multiply
    806,552.80x = 1,209,829.20 × 526,386.40
  4. Step 4: Simplify right side
    806,552.80x = 636,837,637,202.88
  5. Step 5: Solve for x
    x = 636,837,637,202.88/806,552.80
  6. Step 6: Final answer
    x = 789,579.60

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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.