Home / 414,439.40-621,966.30-274,151.40

Finding the Fourth Proportional to 414,439.40, 621,966.30 and 274,151.40

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Solution

The fourth proportional to 414,439.40, 621,966.30 and 274,151.40 is: 411,430.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,439.40 : 621,966.30 = 274,151.40 : x
  2. Step 2: Convert to fraction form
    414,439.40/621,966.30 = 274,151.40/x
  3. Step 3: Cross multiply
    414,439.40x = 621,966.30 × 274,151.40
  4. Step 4: Simplify right side
    414,439.40x = 170,512,931,897.82
  5. Step 5: Solve for x
    x = 170,512,931,897.82/414,439.40
  6. Step 6: Final answer
    x = 411,430.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.