Home / 697,255.55-962,172.23-391,303.36

Finding the Fourth Proportional to 697,255.55, 962,172.23 and 391,303.36

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Solution

The fourth proportional to 697,255.55, 962,172.23 and 391,303.36 is: 539,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,255.55 : 962,172.23 = 391,303.36 : x
  2. Step 2: Convert to fraction form
    697,255.55/962,172.23 = 391,303.36/x
  3. Step 3: Cross multiply
    697,255.55x = 962,172.23 × 391,303.36
  4. Step 4: Simplify right side
    697,255.55x = 376,501,226,497.69
  5. Step 5: Solve for x
    x = 376,501,226,497.69/697,255.55
  6. Step 6: Final answer
    x = 539,975.95

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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.