Home / 987,888.32-1,362,784.80-624,700.16

Finding the Fourth Proportional to 987,888.32, 1,362,784.80 and 624,700.16

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Solution

The fourth proportional to 987,888.32, 1,362,784.80 and 624,700.16 is: 861,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,888.32 : 1,362,784.80 = 624,700.16 : x
  2. Step 2: Convert to fraction form
    987,888.32/1,362,784.80 = 624,700.16/x
  3. Step 3: Cross multiply
    987,888.32x = 1,362,784.80 × 624,700.16
  4. Step 4: Simplify right side
    987,888.32x = 851,331,882,605.57
  5. Step 5: Solve for x
    x = 851,331,882,605.57/987,888.32
  6. Step 6: Final answer
    x = 861,769.36

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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.