Home / 879,383.64-1,213,576.92-497,402.76

Finding the Fourth Proportional to 879,383.64, 1,213,576.92 and 497,402.76

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Solution

The fourth proportional to 879,383.64, 1,213,576.92 and 497,402.76 is: 686,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,383.64 : 1,213,576.92 = 497,402.76 : x
  2. Step 2: Convert to fraction form
    879,383.64/1,213,576.92 = 497,402.76/x
  3. Step 3: Cross multiply
    879,383.64x = 1,213,576.92 × 497,402.76
  4. Step 4: Simplify right side
    879,383.64x = 603,636,509,480.30
  5. Step 5: Solve for x
    x = 603,636,509,480.30/879,383.64
  6. Step 6: Final answer
    x = 686,431.36

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1.5x scale

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.