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Finding the Fourth Proportional to 571,341.60, 788,395.68 and 316,687.32

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Solution

The fourth proportional to 571,341.60, 788,395.68 and 316,687.32 is: 436,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,341.60 : 788,395.68 = 316,687.32 : x
  2. Step 2: Convert to fraction form
    571,341.60/788,395.68 = 316,687.32/x
  3. Step 3: Cross multiply
    571,341.60x = 788,395.68 × 316,687.32
  4. Step 4: Simplify right side
    571,341.60x = 249,674,914,998.78
  5. Step 5: Solve for x
    x = 249,674,914,998.78/571,341.60
  6. Step 6: Final answer
    x = 436,997.61

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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.