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Finding the Fourth Proportional to 358,533.91, 494,767.18 and 197,390.16

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Solution

The fourth proportional to 358,533.91, 494,767.18 and 197,390.16 is: 272,393.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,533.91 : 494,767.18 = 197,390.16 : x
  2. Step 2: Convert to fraction form
    358,533.91/494,767.18 = 197,390.16/x
  3. Step 3: Cross multiply
    358,533.91x = 494,767.18 × 197,390.16
  4. Step 4: Simplify right side
    358,533.91x = 97,662,173,069.69
  5. Step 5: Solve for x
    x = 97,662,173,069.69/358,533.91
  6. Step 6: Final answer
    x = 272,393.13

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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.