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Finding the Fourth Proportional to 707,062.79, 975,744.86 and 384,772.82

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Solution

The fourth proportional to 707,062.79, 975,744.86 and 384,772.82 is: 530,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,062.79 : 975,744.86 = 384,772.82 : x
  2. Step 2: Convert to fraction form
    707,062.79/975,744.86 = 384,772.82/x
  3. Step 3: Cross multiply
    707,062.79x = 975,744.86 × 384,772.82
  4. Step 4: Simplify right side
    707,062.79x = 375,440,094,580.12
  5. Step 5: Solve for x
    x = 375,440,094,580.12/707,062.79
  6. Step 6: Final answer
    x = 530,985.51

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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.