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Finding the Fourth Proportional to 697,166.88, 962,011.26 and 391,203.24

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Solution

The fourth proportional to 697,166.88, 962,011.26 and 391,203.24 is: 539,816.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,166.88 : 962,011.26 = 391,203.24 : x
  2. Step 2: Convert to fraction form
    697,166.88/962,011.26 = 391,203.24/x
  3. Step 3: Cross multiply
    697,166.88x = 962,011.26 × 391,203.24
  4. Step 4: Simplify right side
    697,166.88x = 376,341,921,828.48
  5. Step 5: Solve for x
    x = 376,341,921,828.48/697,166.88
  6. Step 6: Final answer
    x = 539,816.12

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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.