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Finding the Fourth Proportional to 334,744.32, 502,116.06 and 85,426.32

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Solution

The fourth proportional to 334,744.32, 502,116.06 and 85,426.32 is: 128,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,744.32 : 502,116.06 = 85,426.32 : x
  2. Step 2: Convert to fraction form
    334,744.32/502,116.06 = 85,426.32/x
  3. Step 3: Cross multiply
    334,744.32x = 502,116.06 × 85,426.32
  4. Step 4: Simplify right side
    334,744.32x = 42,893,927,218.70
  5. Step 5: Solve for x
    x = 42,893,927,218.70/334,744.32
  6. Step 6: Final answer
    x = 128,139.37

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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.