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Finding the Fourth Proportional to 472,835.70, 709,714.35 and 236,445.30

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Solution

The fourth proportional to 472,835.70, 709,714.35 and 236,445.30 is: 354,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,835.70 : 709,714.35 = 236,445.30 : x
  2. Step 2: Convert to fraction form
    472,835.70/709,714.35 = 236,445.30/x
  3. Step 3: Cross multiply
    472,835.70x = 709,714.35 × 236,445.30
  4. Step 4: Simplify right side
    472,835.70x = 167,808,622,400.06
  5. Step 5: Solve for x
    x = 167,808,622,400.06/472,835.70
  6. Step 6: Final answer
    x = 354,898.38

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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.