Home / 905,501.79-1,249,072.11-565,379.55

Finding the Fourth Proportional to 905,501.79, 1,249,072.11 and 565,379.55

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Solution

The fourth proportional to 905,501.79, 1,249,072.11 and 565,379.55 is: 779,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,501.79 : 1,249,072.11 = 565,379.55 : x
  2. Step 2: Convert to fraction form
    905,501.79/1,249,072.11 = 565,379.55/x
  3. Step 3: Cross multiply
    905,501.79x = 1,249,072.11 × 565,379.55
  4. Step 4: Simplify right side
    905,501.79x = 706,199,827,469.35
  5. Step 5: Solve for x
    x = 706,199,827,469.35/905,501.79
  6. Step 6: Final answer
    x = 779,898.88

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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.