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Finding the Fourth Proportional to 502,434.30, 753,870.15 and 253,116.30

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Solution

The fourth proportional to 502,434.30, 753,870.15 and 253,116.30 is: 379,784.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,434.30 : 753,870.15 = 253,116.30 : x
  2. Step 2: Convert to fraction form
    502,434.30/753,870.15 = 253,116.30/x
  3. Step 3: Cross multiply
    502,434.30x = 753,870.15 × 253,116.30
  4. Step 4: Simplify right side
    502,434.30x = 190,816,823,048.45
  5. Step 5: Solve for x
    x = 190,816,823,048.45/502,434.30
  6. Step 6: Final answer
    x = 379,784.63

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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.