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Finding the Fourth Proportional to 331,457.47, 457,411.35 and 180,554.47

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Solution

The fourth proportional to 331,457.47, 457,411.35 and 180,554.47 is: 249,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,457.47 : 457,411.35 = 180,554.47 : x
  2. Step 2: Convert to fraction form
    331,457.47/457,411.35 = 180,554.47/x
  3. Step 3: Cross multiply
    331,457.47x = 457,411.35 × 180,554.47
  4. Step 4: Simplify right side
    331,457.47x = 82,587,663,404.79
  5. Step 5: Solve for x
    x = 82,587,663,404.79/331,457.47
  6. Step 6: Final answer
    x = 249,165.19

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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.