Home / 691,038.90-953,666.19-404,651.25

Finding the Fourth Proportional to 691,038.90, 953,666.19 and 404,651.25

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Solution

The fourth proportional to 691,038.90, 953,666.19 and 404,651.25 is: 558,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,038.90 : 953,666.19 = 404,651.25 : x
  2. Step 2: Convert to fraction form
    691,038.90/953,666.19 = 404,651.25/x
  3. Step 3: Cross multiply
    691,038.90x = 953,666.19 × 404,651.25
  4. Step 4: Simplify right side
    691,038.90x = 385,902,215,866.24
  5. Step 5: Solve for x
    x = 385,902,215,866.24/691,038.90
  6. Step 6: Final answer
    x = 558,437.76

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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.