Home / 1,139,610.38-1,572,703.44-630,316.40

Finding the Fourth Proportional to 1,139,610.38, 1,572,703.44 and 630,316.40

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Solution

The fourth proportional to 1,139,610.38, 1,572,703.44 and 630,316.40 is: 869,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,610.38 : 1,572,703.44 = 630,316.40 : x
  2. Step 2: Convert to fraction form
    1,139,610.38/1,572,703.44 = 630,316.40/x
  3. Step 3: Cross multiply
    1,139,610.38x = 1,572,703.44 × 630,316.40
  4. Step 4: Simplify right side
    1,139,610.38x = 991,300,770,568.42
  5. Step 5: Solve for x
    x = 991,300,770,568.42/1,139,610.38
  6. Step 6: Final answer
    x = 869,859.37

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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.