Home / 817,577.19-1,128,309.57-454,999.98

Finding the Fourth Proportional to 817,577.19, 1,128,309.57 and 454,999.98

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Solution

The fourth proportional to 817,577.19, 1,128,309.57 and 454,999.98 is: 627,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,577.19 : 1,128,309.57 = 454,999.98 : x
  2. Step 2: Convert to fraction form
    817,577.19/1,128,309.57 = 454,999.98/x
  3. Step 3: Cross multiply
    817,577.19x = 1,128,309.57 × 454,999.98
  4. Step 4: Simplify right side
    817,577.19x = 513,380,831,783.81
  5. Step 5: Solve for x
    x = 513,380,831,783.81/817,577.19
  6. Step 6: Final answer
    x = 627,929.49

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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.