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Finding the Fourth Proportional to 346,601.10, 519,901.65 and 122,214.90

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Solution

The fourth proportional to 346,601.10, 519,901.65 and 122,214.90 is: 183,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,601.10 : 519,901.65 = 122,214.90 : x
  2. Step 2: Convert to fraction form
    346,601.10/519,901.65 = 122,214.90/x
  3. Step 3: Cross multiply
    346,601.10x = 519,901.65 × 122,214.90
  4. Step 4: Simplify right side
    346,601.10x = 63,539,728,164.59
  5. Step 5: Solve for x
    x = 63,539,728,164.59/346,601.10
  6. Step 6: Final answer
    x = 183,322.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.