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Finding the Fourth Proportional to 421,034.10, 633,106.35 and 352,605.30

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Solution

The fourth proportional to 421,034.10, 633,106.35 and 352,605.30 is: 530,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,034.10 : 633,106.35 = 352,605.30 : x
  2. Step 2: Convert to fraction form
    421,034.10/633,106.35 = 352,605.30/x
  3. Step 3: Cross multiply
    421,034.10x = 633,106.35 × 352,605.30
  4. Step 4: Simplify right side
    421,034.10x = 223,236,654,473.66
  5. Step 5: Solve for x
    x = 223,236,654,473.66/421,034.10
  6. Step 6: Final answer
    x = 530,210.39

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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.