Home / 697,325.51-962,235.25-391,435.56

Finding the Fourth Proportional to 697,325.51, 962,235.25 and 391,435.56

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Solution

The fourth proportional to 697,325.51, 962,235.25 and 391,435.56 is: 540,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,325.51 : 962,235.25 = 391,435.56 : x
  2. Step 2: Convert to fraction form
    697,325.51/962,235.25 = 391,435.56/x
  3. Step 3: Cross multiply
    697,325.51x = 962,235.25 × 391,435.56
  4. Step 4: Simplify right side
    697,325.51x = 376,653,092,956.90
  5. Step 5: Solve for x
    x = 376,653,092,956.90/697,325.51
  6. Step 6: Final answer
    x = 540,139.56

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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.