Home / 821,929.95-1,134,254.48-454,405.51

Finding the Fourth Proportional to 821,929.95, 1,134,254.48 and 454,405.51

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Solution

The fourth proportional to 821,929.95, 1,134,254.48 and 454,405.51 is: 627,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,929.95 : 1,134,254.48 = 454,405.51 : x
  2. Step 2: Convert to fraction form
    821,929.95/1,134,254.48 = 454,405.51/x
  3. Step 3: Cross multiply
    821,929.95x = 1,134,254.48 × 454,405.51
  4. Step 4: Simplify right side
    821,929.95x = 515,411,484,599.98
  5. Step 5: Solve for x
    x = 515,411,484,599.98/821,929.95
  6. Step 6: Final answer
    x = 627,074.71

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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.