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Finding the Fourth Proportional to 472,475.60, 708,784.80 and 152,520.56

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Solution

The fourth proportional to 472,475.60, 708,784.80 and 152,520.56 is: 228,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,475.60 : 708,784.80 = 152,520.56 : x
  2. Step 2: Convert to fraction form
    472,475.60/708,784.80 = 152,520.56/x
  3. Step 3: Cross multiply
    472,475.60x = 708,784.80 × 152,520.56
  4. Step 4: Simplify right side
    472,475.60x = 108,104,254,615.49
  5. Step 5: Solve for x
    x = 108,104,254,615.49/472,475.60
  6. Step 6: Final answer
    x = 228,803.89

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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.