Home / 939,877.38-1,297,031.80-510,157.40

Finding the Fourth Proportional to 939,877.38, 1,297,031.80 and 510,157.40

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Solution

The fourth proportional to 939,877.38, 1,297,031.80 and 510,157.40 is: 704,017.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,877.38 : 1,297,031.80 = 510,157.40 : x
  2. Step 2: Convert to fraction form
    939,877.38/1,297,031.80 = 510,157.40/x
  3. Step 3: Cross multiply
    939,877.38x = 1,297,031.80 × 510,157.40
  4. Step 4: Simplify right side
    939,877.38x = 661,690,370,805.32
  5. Step 5: Solve for x
    x = 661,690,370,805.32/939,877.38
  6. Step 6: Final answer
    x = 704,017.76

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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.