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Finding the Fourth Proportional to 352,647.32, 486,985.44 and 245,510.31

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Solution

The fourth proportional to 352,647.32, 486,985.44 and 245,510.31 is: 339,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,647.32 : 486,985.44 = 245,510.31 : x
  2. Step 2: Convert to fraction form
    352,647.32/486,985.44 = 245,510.31/x
  3. Step 3: Cross multiply
    352,647.32x = 486,985.44 × 245,510.31
  4. Step 4: Simplify right side
    352,647.32x = 119,559,946,339.89
  5. Step 5: Solve for x
    x = 119,559,946,339.89/352,647.32
  6. Step 6: Final answer
    x = 339,035.46

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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.