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Finding the Fourth Proportional to 622,359.70, 931,465.95 and 547,710.10

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Solution

The fourth proportional to 622,359.70, 931,465.95 and 547,710.10 is: 819,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,359.70 : 931,465.95 = 547,710.10 : x
  2. Step 2: Convert to fraction form
    622,359.70/931,465.95 = 547,710.10/x
  3. Step 3: Cross multiply
    622,359.70x = 931,465.95 × 547,710.10
  4. Step 4: Simplify right side
    622,359.70x = 510,173,308,621.10
  5. Step 5: Solve for x
    x = 510,173,308,621.10/622,359.70
  6. Step 6: Final answer
    x = 819,740.27

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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.