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Finding the Fourth Proportional to 405,031.06, 559,011.10 and 235,363.60

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Solution

The fourth proportional to 405,031.06, 559,011.10 and 235,363.60 is: 324,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,031.06 : 559,011.10 = 235,363.60 : x
  2. Step 2: Convert to fraction form
    405,031.06/559,011.10 = 235,363.60/x
  3. Step 3: Cross multiply
    405,031.06x = 559,011.10 × 235,363.60
  4. Step 4: Simplify right side
    405,031.06x = 131,570,862,950.02
  5. Step 5: Solve for x
    x = 131,570,862,950.02/405,031.06
  6. Step 6: Final answer
    x = 324,841.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.