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Finding the Fourth Proportional to 333,390.10, 460,078.90 and 180,428.43

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Solution

The fourth proportional to 333,390.10, 460,078.90 and 180,428.43 is: 248,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,390.10 : 460,078.90 = 180,428.43 : x
  2. Step 2: Convert to fraction form
    333,390.10/460,078.90 = 180,428.43/x
  3. Step 3: Cross multiply
    333,390.10x = 460,078.90 × 180,428.43
  4. Step 4: Simplify right side
    333,390.10x = 83,011,312,001.86
  5. Step 5: Solve for x
    x = 83,011,312,001.86/333,390.10
  6. Step 6: Final answer
    x = 248,991.53

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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.