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Finding the Fourth Proportional to 610,193.10, 842,159.69 and 389,525.71

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Solution

The fourth proportional to 610,193.10, 842,159.69 and 389,525.71 is: 537,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,193.10 : 842,159.69 = 389,525.71 : x
  2. Step 2: Convert to fraction form
    610,193.10/842,159.69 = 389,525.71/x
  3. Step 3: Cross multiply
    610,193.10x = 842,159.69 × 389,525.71
  4. Step 4: Simplify right side
    610,193.10x = 328,042,851,180.63
  5. Step 5: Solve for x
    x = 328,042,851,180.63/610,193.10
  6. Step 6: Final answer
    x = 537,604.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.