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Finding the Fourth Proportional to 282,317.64, 389,596.71 and 153,258.72

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Solution

The fourth proportional to 282,317.64, 389,596.71 and 153,258.72 is: 211,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,317.64 : 389,596.71 = 153,258.72 : x
  2. Step 2: Convert to fraction form
    282,317.64/389,596.71 = 153,258.72/x
  3. Step 3: Cross multiply
    282,317.64x = 389,596.71 × 153,258.72
  4. Step 4: Simplify right side
    282,317.64x = 59,709,093,090.81
  5. Step 5: Solve for x
    x = 59,709,093,090.81/282,317.64
  6. Step 6: Final answer
    x = 211,496.15

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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.