Home / 913,230.95-1,260,260.21-505,349.96

Finding the Fourth Proportional to 913,230.95, 1,260,260.21 and 505,349.96

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Solution

The fourth proportional to 913,230.95, 1,260,260.21 and 505,349.96 is: 697,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,230.95 : 1,260,260.21 = 505,349.96 : x
  2. Step 2: Convert to fraction form
    913,230.95/1,260,260.21 = 505,349.96/x
  3. Step 3: Cross multiply
    913,230.95x = 1,260,260.21 × 505,349.96
  4. Step 4: Simplify right side
    913,230.95x = 636,872,441,675.17
  5. Step 5: Solve for x
    x = 636,872,441,675.17/913,230.95
  6. Step 6: Final answer
    x = 697,383.77

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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.