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Finding the Fourth Proportional to 571,179.72, 788,232.60 and 316,535.16

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Solution

The fourth proportional to 571,179.72, 788,232.60 and 316,535.16 is: 436,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,179.72 : 788,232.60 = 316,535.16 : x
  2. Step 2: Convert to fraction form
    571,179.72/788,232.60 = 316,535.16/x
  3. Step 3: Cross multiply
    571,179.72x = 788,232.60 × 316,535.16
  4. Step 4: Simplify right side
    571,179.72x = 249,503,332,158.22
  5. Step 5: Solve for x
    x = 249,503,332,158.22/571,179.72
  6. Step 6: Final answer
    x = 436,821.06

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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.