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Finding the Fourth Proportional to 555,517.51, 831,852.99 and 384,502.34

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Solution

The fourth proportional to 555,517.51, 831,852.99 and 384,502.34 is: 575,768.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,517.51 : 831,852.99 = 384,502.34 : x
  2. Step 2: Convert to fraction form
    555,517.51/831,852.99 = 384,502.34/x
  3. Step 3: Cross multiply
    555,517.51x = 831,852.99 × 384,502.34
  4. Step 4: Simplify right side
    555,517.51x = 319,849,423,270.63
  5. Step 5: Solve for x
    x = 319,849,423,270.63/555,517.51
  6. Step 6: Final answer
    x = 575,768.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.