Home / 1,287,509.32-1,776,740.70-714,573.64

Finding the Fourth Proportional to 1,287,509.32, 1,776,740.70 and 714,573.64

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Solution

The fourth proportional to 1,287,509.32, 1,776,740.70 and 714,573.64 is: 986,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,509.32 : 1,776,740.70 = 714,573.64 : x
  2. Step 2: Convert to fraction form
    1,287,509.32/1,776,740.70 = 714,573.64/x
  3. Step 3: Cross multiply
    1,287,509.32x = 1,776,740.70 × 714,573.64
  4. Step 4: Simplify right side
    1,287,509.32x = 1,269,612,069,335.15
  5. Step 5: Solve for x
    x = 1,269,612,069,335.15/1,287,509.32
  6. Step 6: Final answer
    x = 986,099.32

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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.