Home / 806,501.20-1,209,751.80-557,669.20

Finding the Fourth Proportional to 806,501.20, 1,209,751.80 and 557,669.20

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Solution

The fourth proportional to 806,501.20, 1,209,751.80 and 557,669.20 is: 836,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,501.20 : 1,209,751.80 = 557,669.20 : x
  2. Step 2: Convert to fraction form
    806,501.20/1,209,751.80 = 557,669.20/x
  3. Step 3: Cross multiply
    806,501.20x = 1,209,751.80 × 557,669.20
  4. Step 4: Simplify right side
    806,501.20x = 674,641,318,504.56
  5. Step 5: Solve for x
    x = 674,641,318,504.56/806,501.20
  6. Step 6: Final answer
    x = 836,503.80

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1.5x scale

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.