Home / 697,421.37-962,542.95-391,624.23

Finding the Fourth Proportional to 697,421.37, 962,542.95 and 391,624.23

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Solution

The fourth proportional to 697,421.37, 962,542.95 and 391,624.23 is: 540,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,421.37 : 962,542.95 = 391,624.23 : x
  2. Step 2: Convert to fraction form
    697,421.37/962,542.95 = 391,624.23/x
  3. Step 3: Cross multiply
    697,421.37x = 962,542.95 × 391,624.23
  4. Step 4: Simplify right side
    697,421.37x = 376,955,141,635.68
  5. Step 5: Solve for x
    x = 376,955,141,635.68/697,421.37
  6. Step 6: Final answer
    x = 540,498.41

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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.