Home / 905,499.69-1,249,317.06-542,791.20

Finding the Fourth Proportional to 905,499.69, 1,249,317.06 and 542,791.20

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Solution

The fourth proportional to 905,499.69, 1,249,317.06 and 542,791.20 is: 748,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,499.69 : 1,249,317.06 = 542,791.20 : x
  2. Step 2: Convert to fraction form
    905,499.69/1,249,317.06 = 542,791.20/x
  3. Step 3: Cross multiply
    905,499.69x = 1,249,317.06 × 542,791.20
  4. Step 4: Simplify right side
    905,499.69x = 678,118,306,177.87
  5. Step 5: Solve for x
    x = 678,118,306,177.87/905,499.69
  6. Step 6: Final answer
    x = 748,888.50

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Double scale
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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.