Home / 644,832.34-890,779.30-516,622.20

Finding the Fourth Proportional to 644,832.34, 890,779.30 and 516,622.20

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Solution

The fourth proportional to 644,832.34, 890,779.30 and 516,622.20 is: 713,668.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,832.34 : 890,779.30 = 516,622.20 : x
  2. Step 2: Convert to fraction form
    644,832.34/890,779.30 = 516,622.20/x
  3. Step 3: Cross multiply
    644,832.34x = 890,779.30 × 516,622.20
  4. Step 4: Simplify right side
    644,832.34x = 460,196,363,512.12
  5. Step 5: Solve for x
    x = 460,196,363,512.12/644,832.34
  6. Step 6: Final answer
    x = 713,668.24

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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.