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Finding the Fourth Proportional to 463,689.54, 695,454 and 139,472.94

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Solution

The fourth proportional to 463,689.54, 695,454 and 139,472.94 is: 209,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,689.54 : 695,454 = 139,472.94 : x
  2. Step 2: Convert to fraction form
    463,689.54/695,454 = 139,472.94/x
  3. Step 3: Cross multiply
    463,689.54x = 695,454 × 139,472.94
  4. Step 4: Simplify right side
    463,689.54x = 96,997,014,014.76
  5. Step 5: Solve for x
    x = 96,997,014,014.76/463,689.54
  6. Step 6: Final answer
    x = 209,185.25

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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.