Home / 909,818.56-1,255,143.72-527,623.96

Finding the Fourth Proportional to 909,818.56, 1,255,143.72 and 527,623.96

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Solution

The fourth proportional to 909,818.56, 1,255,143.72 and 527,623.96 is: 727,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,818.56 : 1,255,143.72 = 527,623.96 : x
  2. Step 2: Convert to fraction form
    909,818.56/1,255,143.72 = 527,623.96/x
  3. Step 3: Cross multiply
    909,818.56x = 1,255,143.72 × 527,623.96
  4. Step 4: Simplify right side
    909,818.56x = 662,243,899,915.53
  5. Step 5: Solve for x
    x = 662,243,899,915.53/909,818.56
  6. Step 6: Final answer
    x = 727,885.68

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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.