Home / 983,185.12-1,356,820.57-553,480.32

Finding the Fourth Proportional to 983,185.12, 1,356,820.57 and 553,480.32

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Solution

The fourth proportional to 983,185.12, 1,356,820.57 and 553,480.32 is: 763,816.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,185.12 : 1,356,820.57 = 553,480.32 : x
  2. Step 2: Convert to fraction form
    983,185.12/1,356,820.57 = 553,480.32/x
  3. Step 3: Cross multiply
    983,185.12x = 1,356,820.57 × 553,480.32
  4. Step 4: Simplify right side
    983,185.12x = 750,973,483,266.18
  5. Step 5: Solve for x
    x = 750,973,483,266.18/983,185.12
  6. Step 6: Final answer
    x = 763,816.97

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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.