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Finding the Fourth Proportional to 512,113.40, 706,610.98 and 294,280.00

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Solution

The fourth proportional to 512,113.40, 706,610.98 and 294,280.00 is: 406,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,113.40 : 706,610.98 = 294,280.00 : x
  2. Step 2: Convert to fraction form
    512,113.40/706,610.98 = 294,280.00/x
  3. Step 3: Cross multiply
    512,113.40x = 706,610.98 × 294,280.00
  4. Step 4: Simplify right side
    512,113.40x = 207,941,482,598.07
  5. Step 5: Solve for x
    x = 207,941,482,598.07/512,113.40
  6. Step 6: Final answer
    x = 406,045.77

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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.