Home / 623,074.02-859,821.39-393,753.66

Finding the Fourth Proportional to 623,074.02, 859,821.39 and 393,753.66

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Solution

The fourth proportional to 623,074.02, 859,821.39 and 393,753.66 is: 543,366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,074.02 : 859,821.39 = 393,753.66 : x
  2. Step 2: Convert to fraction form
    623,074.02/859,821.39 = 393,753.66/x
  3. Step 3: Cross multiply
    623,074.02x = 859,821.39 × 393,753.66
  4. Step 4: Simplify right side
    623,074.02x = 338,557,819,258.79
  5. Step 5: Solve for x
    x = 338,557,819,258.79/623,074.02
  6. Step 6: Final answer
    x = 543,366.93

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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.