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Finding the Fourth Proportional to 424,216.40, 585,391.56 and 242,928.08

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Solution

The fourth proportional to 424,216.40, 585,391.56 and 242,928.08 is: 335,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,216.40 : 585,391.56 = 242,928.08 : x
  2. Step 2: Convert to fraction form
    424,216.40/585,391.56 = 242,928.08/x
  3. Step 3: Cross multiply
    424,216.40x = 585,391.56 × 242,928.08
  4. Step 4: Simplify right side
    424,216.40x = 142,208,047,719.01
  5. Step 5: Solve for x
    x = 142,208,047,719.01/424,216.40
  6. Step 6: Final answer
    x = 335,225.25

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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.