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Finding the Fourth Proportional to 707,213.40, 1,059,264.90 and 613,901.40

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Solution

The fourth proportional to 707,213.40, 1,059,264.90 and 613,901.40 is: 919,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,213.40 : 1,059,264.90 = 613,901.40 : x
  2. Step 2: Convert to fraction form
    707,213.40/1,059,264.90 = 613,901.40/x
  3. Step 3: Cross multiply
    707,213.40x = 1,059,264.90 × 613,901.40
  4. Step 4: Simplify right side
    707,213.40x = 650,284,205,080.86
  5. Step 5: Solve for x
    x = 650,284,205,080.86/707,213.40
  6. Step 6: Final answer
    x = 919,502.10

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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.