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Finding the Fourth Proportional to 346,638.48, 519,991.74 and 144,192.84

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Solution

The fourth proportional to 346,638.48, 519,991.74 and 144,192.84 is: 216,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,638.48 : 519,991.74 = 144,192.84 : x
  2. Step 2: Convert to fraction form
    346,638.48/519,991.74 = 144,192.84/x
  3. Step 3: Cross multiply
    346,638.48x = 519,991.74 × 144,192.84
  4. Step 4: Simplify right side
    346,638.48x = 74,979,085,767.14
  5. Step 5: Solve for x
    x = 74,979,085,767.14/346,638.48
  6. Step 6: Final answer
    x = 216,303.41

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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.