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Finding the Fourth Proportional to 554,668.20, 830,252.70 and 397,204.20

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Solution

The fourth proportional to 554,668.20, 830,252.70 and 397,204.20 is: 594,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,668.20 : 830,252.70 = 397,204.20 : x
  2. Step 2: Convert to fraction form
    554,668.20/830,252.70 = 397,204.20/x
  3. Step 3: Cross multiply
    554,668.20x = 830,252.70 × 397,204.20
  4. Step 4: Simplify right side
    554,668.20x = 329,779,859,501.34
  5. Step 5: Solve for x
    x = 329,779,859,501.34/554,668.20
  6. Step 6: Final answer
    x = 594,553.39

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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.