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Finding the Fourth Proportional to 317,653.50, 438,368.88 and 174,414.10

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Solution

The fourth proportional to 317,653.50, 438,368.88 and 174,414.10 is: 240,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,653.50 : 438,368.88 = 174,414.10 : x
  2. Step 2: Convert to fraction form
    317,653.50/438,368.88 = 174,414.10/x
  3. Step 3: Cross multiply
    317,653.50x = 438,368.88 × 174,414.10
  4. Step 4: Simplify right side
    317,653.50x = 76,457,713,673.21
  5. Step 5: Solve for x
    x = 76,457,713,673.21/317,653.50
  6. Step 6: Final answer
    x = 240,695.33

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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.