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Finding the Fourth Proportional to 468,605.70, 646,674.96 and 253,746.40

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Solution

The fourth proportional to 468,605.70, 646,674.96 and 253,746.40 is: 350,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,605.70 : 646,674.96 = 253,746.40 : x
  2. Step 2: Convert to fraction form
    468,605.70/646,674.96 = 253,746.40/x
  3. Step 3: Cross multiply
    468,605.70x = 646,674.96 × 253,746.40
  4. Step 4: Simplify right side
    468,605.70x = 164,091,443,070.14
  5. Step 5: Solve for x
    x = 164,091,443,070.14/468,605.70
  6. Step 6: Final answer
    x = 350,169.54

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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.