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Finding the Fourth Proportional to 697,559.80, 962,569.74 and 407,196.56

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Solution

The fourth proportional to 697,559.80, 962,569.74 and 407,196.56 is: 561,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,559.80 : 962,569.74 = 407,196.56 : x
  2. Step 2: Convert to fraction form
    697,559.80/962,569.74 = 407,196.56/x
  3. Step 3: Cross multiply
    697,559.80x = 962,569.74 × 407,196.56
  4. Step 4: Simplify right side
    697,559.80x = 391,955,086,888.09
  5. Step 5: Solve for x
    x = 391,955,086,888.09/697,559.80
  6. Step 6: Final answer
    x = 561,894.60

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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.