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Finding the Fourth Proportional to 707,064.96, 975,720.60 and 384,776.40

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Solution

The fourth proportional to 707,064.96, 975,720.60 and 384,776.40 is: 530,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,064.96 : 975,720.60 = 384,776.40 : x
  2. Step 2: Convert to fraction form
    707,064.96/975,720.60 = 384,776.40/x
  3. Step 3: Cross multiply
    707,064.96x = 975,720.60 × 384,776.40
  4. Step 4: Simplify right side
    707,064.96x = 375,434,259,873.84
  5. Step 5: Solve for x
    x = 375,434,259,873.84/707,064.96
  6. Step 6: Final answer
    x = 530,975.63

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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.