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Finding the Fourth Proportional to 706,995.19, 975,645.15 and 384,699.74

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Solution

The fourth proportional to 706,995.19, 975,645.15 and 384,699.74 is: 530,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,995.19 : 975,645.15 = 384,699.74 : x
  2. Step 2: Convert to fraction form
    706,995.19/975,645.15 = 384,699.74/x
  3. Step 3: Cross multiply
    706,995.19x = 975,645.15 × 384,699.74
  4. Step 4: Simplify right side
    706,995.19x = 375,330,435,537.26
  5. Step 5: Solve for x
    x = 375,330,435,537.26/706,995.19
  6. Step 6: Final answer
    x = 530,881.17

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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.