Home / 1,287,706.86-1,777,031.07-706,915.53

Finding the Fourth Proportional to 1,287,706.86, 1,777,031.07 and 706,915.53

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Solution

The fourth proportional to 1,287,706.86, 1,777,031.07 and 706,915.53 is: 975,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,706.86 : 1,777,031.07 = 706,915.53 : x
  2. Step 2: Convert to fraction form
    1,287,706.86/1,777,031.07 = 706,915.53/x
  3. Step 3: Cross multiply
    1,287,706.86x = 1,777,031.07 × 706,915.53
  4. Step 4: Simplify right side
    1,287,706.86x = 1,256,210,860,675.52
  5. Step 5: Solve for x
    x = 1,256,210,860,675.52/1,287,706.86
  6. Step 6: Final answer
    x = 975,541.02

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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.