Home / 830,143.88-1,238,337.19-805,671.35

Finding the Fourth Proportional to 830,143.88, 1,238,337.19 and 805,671.35

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Solution

The fourth proportional to 830,143.88, 1,238,337.19 and 805,671.35 is: 1,201,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,143.88 : 1,238,337.19 = 805,671.35 : x
  2. Step 2: Convert to fraction form
    830,143.88/1,238,337.19 = 805,671.35/x
  3. Step 3: Cross multiply
    830,143.88x = 1,238,337.19 × 805,671.35
  4. Step 4: Simplify right side
    830,143.88x = 997,692,795,622.51
  5. Step 5: Solve for x
    x = 997,692,795,622.51/830,143.88
  6. Step 6: Final answer
    x = 1,201,831.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.