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Finding the Fourth Proportional to 346,784.64, 478,957.68 and 233,410.56

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Solution

The fourth proportional to 346,784.64, 478,957.68 and 233,410.56 is: 322,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,784.64 : 478,957.68 = 233,410.56 : x
  2. Step 2: Convert to fraction form
    346,784.64/478,957.68 = 233,410.56/x
  3. Step 3: Cross multiply
    346,784.64x = 478,957.68 × 233,410.56
  4. Step 4: Simplify right side
    346,784.64x = 111,793,780,305.10
  5. Step 5: Solve for x
    x = 111,793,780,305.10/346,784.64
  6. Step 6: Final answer
    x = 322,372.35

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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.