Home / 838,280.64-1,156,485.60-515,893.44

Finding the Fourth Proportional to 838,280.64, 1,156,485.60 and 515,893.44

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Solution

The fourth proportional to 838,280.64, 1,156,485.60 and 515,893.44 is: 711,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,280.64 : 1,156,485.60 = 515,893.44 : x
  2. Step 2: Convert to fraction form
    838,280.64/1,156,485.60 = 515,893.44/x
  3. Step 3: Cross multiply
    838,280.64x = 1,156,485.60 × 515,893.44
  4. Step 4: Simplify right side
    838,280.64x = 596,623,334,494.46
  5. Step 5: Solve for x
    x = 596,623,334,494.46/838,280.64
  6. Step 6: Final answer
    x = 711,722.67

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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.