Home / 839,683.71-1,158,763.56-457,710.51

Finding the Fourth Proportional to 839,683.71, 1,158,763.56 and 457,710.51

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Solution

The fourth proportional to 839,683.71, 1,158,763.56 and 457,710.51 is: 631,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,683.71 : 1,158,763.56 = 457,710.51 : x
  2. Step 2: Convert to fraction form
    839,683.71/1,158,763.56 = 457,710.51/x
  3. Step 3: Cross multiply
    839,683.71x = 1,158,763.56 × 457,710.51
  4. Step 4: Simplify right side
    839,683.71x = 530,378,260,017.02
  5. Step 5: Solve for x
    x = 530,378,260,017.02/839,683.71
  6. Step 6: Final answer
    x = 631,640.53

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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.