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Finding the Fourth Proportional to 371,794.28, 556,231.56 and 286,913.18

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Solution

The fourth proportional to 371,794.28, 556,231.56 and 286,913.18 is: 429,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,794.28 : 556,231.56 = 286,913.18 : x
  2. Step 2: Convert to fraction form
    371,794.28/556,231.56 = 286,913.18/x
  3. Step 3: Cross multiply
    371,794.28x = 556,231.56 × 286,913.18
  4. Step 4: Simplify right side
    371,794.28x = 159,590,165,695.96
  5. Step 5: Solve for x
    x = 159,590,165,695.96/371,794.28
  6. Step 6: Final answer
    x = 429,243.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.