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Finding the Fourth Proportional to 626,853.60, 940,894.80 and 311,666.40

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Solution

The fourth proportional to 626,853.60, 940,894.80 and 311,666.40 is: 467,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,853.60 : 940,894.80 = 311,666.40 : x
  2. Step 2: Convert to fraction form
    626,853.60/940,894.80 = 311,666.40/x
  3. Step 3: Cross multiply
    626,853.60x = 940,894.80 × 311,666.40
  4. Step 4: Simplify right side
    626,853.60x = 293,245,295,094.72
  5. Step 5: Solve for x
    x = 293,245,295,094.72/626,853.60
  6. Step 6: Final answer
    x = 467,805.07

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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.