Home / 647,564.30-971,346.45-436,057.10

Finding the Fourth Proportional to 647,564.30, 971,346.45 and 436,057.10

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Solution

The fourth proportional to 647,564.30, 971,346.45 and 436,057.10 is: 654,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,564.30 : 971,346.45 = 436,057.10 : x
  2. Step 2: Convert to fraction form
    647,564.30/971,346.45 = 436,057.10/x
  3. Step 3: Cross multiply
    647,564.30x = 971,346.45 × 436,057.10
  4. Step 4: Simplify right side
    647,564.30x = 423,562,516,082.30
  5. Step 5: Solve for x
    x = 423,562,516,082.30/647,564.30
  6. Step 6: Final answer
    x = 654,085.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.