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Finding the Fourth Proportional to 981,700.80, 1,473,328.80 and 382,948.80

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Solution

The fourth proportional to 981,700.80, 1,473,328.80 and 382,948.80 is: 574,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,700.80 : 1,473,328.80 = 382,948.80 : x
  2. Step 2: Convert to fraction form
    981,700.80/1,473,328.80 = 382,948.80/x
  3. Step 3: Cross multiply
    981,700.80x = 1,473,328.80 × 382,948.80
  4. Step 4: Simplify right side
    981,700.80x = 564,209,495,965.44
  5. Step 5: Solve for x
    x = 564,209,495,965.44/981,700.80
  6. Step 6: Final answer
    x = 574,726.53

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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.