Home / 839,376.95-1,258,011.88-661,180.19

Finding the Fourth Proportional to 839,376.95, 1,258,011.88 and 661,180.19

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Solution

The fourth proportional to 839,376.95, 1,258,011.88 and 661,180.19 is: 990,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,376.95 : 1,258,011.88 = 661,180.19 : x
  2. Step 2: Convert to fraction form
    839,376.95/1,258,011.88 = 661,180.19/x
  3. Step 3: Cross multiply
    839,376.95x = 1,258,011.88 × 661,180.19
  4. Step 4: Simplify right side
    839,376.95x = 831,772,525,897.65
  5. Step 5: Solve for x
    x = 831,772,525,897.65/839,376.95
  6. Step 6: Final answer
    x = 990,940.40

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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.