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Finding the Fourth Proportional to 334,288.70, 501,434.13 and 84,970.70

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Solution

The fourth proportional to 334,288.70, 501,434.13 and 84,970.70 is: 127,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,288.70 : 501,434.13 = 84,970.70 : x
  2. Step 2: Convert to fraction form
    334,288.70/501,434.13 = 84,970.70/x
  3. Step 3: Cross multiply
    334,288.70x = 501,434.13 × 84,970.70
  4. Step 4: Simplify right side
    334,288.70x = 42,607,209,029.99
  5. Step 5: Solve for x
    x = 42,607,209,029.99/334,288.70
  6. Step 6: Final answer
    x = 127,456.32

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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.