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Finding the Fourth Proportional to 571,207.40, 856,227.90 and 334,428.20

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Solution

The fourth proportional to 571,207.40, 856,227.90 and 334,428.20 is: 501,300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,207.40 : 856,227.90 = 334,428.20 : x
  2. Step 2: Convert to fraction form
    571,207.40/856,227.90 = 334,428.20/x
  3. Step 3: Cross multiply
    571,207.40x = 856,227.90 × 334,428.20
  4. Step 4: Simplify right side
    571,207.40x = 286,346,755,386.78
  5. Step 5: Solve for x
    x = 286,346,755,386.78/571,207.40
  6. Step 6: Final answer
    x = 501,300.85

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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.