Home / 656,126.92-899,549.91-644,169.50

Finding the Fourth Proportional to 656,126.92, 899,549.91 and 644,169.50

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Solution

The fourth proportional to 656,126.92, 899,549.91 and 644,169.50 is: 883,156.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,126.92 : 899,549.91 = 644,169.50 : x
  2. Step 2: Convert to fraction form
    656,126.92/899,549.91 = 644,169.50/x
  3. Step 3: Cross multiply
    656,126.92x = 899,549.91 × 644,169.50
  4. Step 4: Simplify right side
    656,126.92x = 579,462,615,749.75
  5. Step 5: Solve for x
    x = 579,462,615,749.75/656,126.92
  6. Step 6: Final answer
    x = 883,156.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.