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Finding the Fourth Proportional to 611,496.36, 843,848.64 and 339,557.16

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Solution

The fourth proportional to 611,496.36, 843,848.64 and 339,557.16 is: 468,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,496.36 : 843,848.64 = 339,557.16 : x
  2. Step 2: Convert to fraction form
    611,496.36/843,848.64 = 339,557.16/x
  3. Step 3: Cross multiply
    611,496.36x = 843,848.64 × 339,557.16
  4. Step 4: Simplify right side
    611,496.36x = 286,534,847,668.26
  5. Step 5: Solve for x
    x = 286,534,847,668.26/611,496.36
  6. Step 6: Final answer
    x = 468,579.81

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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.