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Finding the Fourth Proportional to 427,036.40, 589,284.90 and 236,038.40

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Solution

The fourth proportional to 427,036.40, 589,284.90 and 236,038.40 is: 325,718.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,036.40 : 589,284.90 = 236,038.40 : x
  2. Step 2: Convert to fraction form
    427,036.40/589,284.90 = 236,038.40/x
  3. Step 3: Cross multiply
    427,036.40x = 589,284.90 × 236,038.40
  4. Step 4: Simplify right side
    427,036.40x = 139,093,864,940.16
  5. Step 5: Solve for x
    x = 139,093,864,940.16/427,036.40
  6. Step 6: Final answer
    x = 325,718.99

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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.