Home / 824,589.54-1,138,281.93-538,354.98

Finding the Fourth Proportional to 824,589.54, 1,138,281.93 and 538,354.98

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Solution

The fourth proportional to 824,589.54, 1,138,281.93 and 538,354.98 is: 743,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,589.54 : 1,138,281.93 = 538,354.98 : x
  2. Step 2: Convert to fraction form
    824,589.54/1,138,281.93 = 538,354.98/x
  3. Step 3: Cross multiply
    824,589.54x = 1,138,281.93 × 538,354.98
  4. Step 4: Simplify right side
    824,589.54x = 612,799,745,659.51
  5. Step 5: Solve for x
    x = 612,799,745,659.51/824,589.54
  6. Step 6: Final answer
    x = 743,157.31

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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.