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Finding the Fourth Proportional to 707,761.18, 977,359.53 and 449,723.13

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Solution

The fourth proportional to 707,761.18, 977,359.53 and 449,723.13 is: 621,030.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,761.18 : 977,359.53 = 449,723.13 : x
  2. Step 2: Convert to fraction form
    707,761.18/977,359.53 = 449,723.13/x
  3. Step 3: Cross multiply
    707,761.18x = 977,359.53 × 449,723.13
  4. Step 4: Simplify right side
    707,761.18x = 439,541,186,966.93
  5. Step 5: Solve for x
    x = 439,541,186,966.93/707,761.18
  6. Step 6: Final answer
    x = 621,030.37

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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.