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Finding the Fourth Proportional to 708,705.72, 977,219.34 and 579,242.36

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Solution

The fourth proportional to 708,705.72, 977,219.34 and 579,242.36 is: 798,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,705.72 : 977,219.34 = 579,242.36 : x
  2. Step 2: Convert to fraction form
    708,705.72/977,219.34 = 579,242.36/x
  3. Step 3: Cross multiply
    708,705.72x = 977,219.34 × 579,242.36
  4. Step 4: Simplify right side
    708,705.72x = 566,046,836,739.24
  5. Step 5: Solve for x
    x = 566,046,836,739.24/708,705.72
  6. Step 6: Final answer
    x = 798,705.05

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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.