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Finding the Fourth Proportional to 346,748.80, 520,123.20 and 294,390.40

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Solution

The fourth proportional to 346,748.80, 520,123.20 and 294,390.40 is: 441,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,748.80 : 520,123.20 = 294,390.40 : x
  2. Step 2: Convert to fraction form
    346,748.80/520,123.20 = 294,390.40/x
  3. Step 3: Cross multiply
    346,748.80x = 520,123.20 × 294,390.40
  4. Step 4: Simplify right side
    346,748.80x = 153,119,276,897.28
  5. Step 5: Solve for x
    x = 153,119,276,897.28/346,748.80
  6. Step 6: Final answer
    x = 441,585.60

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