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Finding the Fourth Proportional to 610,346.30, 842,244.16 and 338,398.32

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Solution

The fourth proportional to 610,346.30, 842,244.16 and 338,398.32 is: 466,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,346.30 : 842,244.16 = 338,398.32 : x
  2. Step 2: Convert to fraction form
    610,346.30/842,244.16 = 338,398.32/x
  3. Step 3: Cross multiply
    610,346.30x = 842,244.16 × 338,398.32
  4. Step 4: Simplify right side
    610,346.30x = 285,014,008,773.81
  5. Step 5: Solve for x
    x = 285,014,008,773.81/610,346.30
  6. Step 6: Final answer
    x = 466,970.98

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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.