Home / 1,287,706.61-1,777,030.72-706,915.28

Finding the Fourth Proportional to 1,287,706.61, 1,777,030.72 and 706,915.28

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Solution

The fourth proportional to 1,287,706.61, 1,777,030.72 and 706,915.28 is: 975,540.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,706.61 : 1,777,030.72 = 706,915.28 : x
  2. Step 2: Convert to fraction form
    1,287,706.61/1,777,030.72 = 706,915.28/x
  3. Step 3: Cross multiply
    1,287,706.61x = 1,777,030.72 × 706,915.28
  4. Step 4: Simplify right side
    1,287,706.61x = 1,256,210,168,997.40
  5. Step 5: Solve for x
    x = 1,256,210,168,997.40/1,287,706.61
  6. Step 6: Final answer
    x = 975,540.67

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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.