Home / 905,143.56-1,249,322.58-523,115.16

Finding the Fourth Proportional to 905,143.56, 1,249,322.58 and 523,115.16

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Solution

The fourth proportional to 905,143.56, 1,249,322.58 and 523,115.16 is: 722,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,143.56 : 1,249,322.58 = 523,115.16 : x
  2. Step 2: Convert to fraction form
    905,143.56/1,249,322.58 = 523,115.16/x
  3. Step 3: Cross multiply
    905,143.56x = 1,249,322.58 × 523,115.16
  4. Step 4: Simplify right side
    905,143.56x = 653,539,581,328.31
  5. Step 5: Solve for x
    x = 653,539,581,328.31/905,143.56
  6. Step 6: Final answer
    x = 722,028.65

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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.