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Finding the Fourth Proportional to 346,717.80, 520,076.70 and 294,359.40

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Solution

The fourth proportional to 346,717.80, 520,076.70 and 294,359.40 is: 441,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,717.80 : 520,076.70 = 294,359.40 : x
  2. Step 2: Convert to fraction form
    346,717.80/520,076.70 = 294,359.40/x
  3. Step 3: Cross multiply
    346,717.80x = 520,076.70 × 294,359.40
  4. Step 4: Simplify right side
    346,717.80x = 153,089,465,365.98
  5. Step 5: Solve for x
    x = 153,089,465,365.98/346,717.80
  6. Step 6: Final answer
    x = 441,539.10

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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.