Home / 912,984.75-1,369,209.38-343,955.25

Finding the Fourth Proportional to 912,984.75, 1,369,209.38 and 343,955.25

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Solution

The fourth proportional to 912,984.75, 1,369,209.38 and 343,955.25 is: 515,832.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,984.75 : 1,369,209.38 = 343,955.25 : x
  2. Step 2: Convert to fraction form
    912,984.75/1,369,209.38 = 343,955.25/x
  3. Step 3: Cross multiply
    912,984.75x = 1,369,209.38 × 343,955.25
  4. Step 4: Simplify right side
    912,984.75x = 470,946,752,880.47
  5. Step 5: Solve for x
    x = 470,946,752,880.47/912,984.75
  6. Step 6: Final answer
    x = 515,832.00

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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.