Home / 928,162.98-1,280,577.33-520,208.19

Finding the Fourth Proportional to 928,162.98, 1,280,577.33 and 520,208.19

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Solution

The fourth proportional to 928,162.98, 1,280,577.33 and 520,208.19 is: 717,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,162.98 : 1,280,577.33 = 520,208.19 : x
  2. Step 2: Convert to fraction form
    928,162.98/1,280,577.33 = 520,208.19/x
  3. Step 3: Cross multiply
    928,162.98x = 1,280,577.33 × 520,208.19
  4. Step 4: Simplify right side
    928,162.98x = 666,166,814,994.33
  5. Step 5: Solve for x
    x = 666,166,814,994.33/928,162.98
  6. Step 6: Final answer
    x = 717,726.12

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Double scale
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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.