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Finding the Fourth Proportional to 313,270.43, 432,313.56 and 170,030.51

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Solution

The fourth proportional to 313,270.43, 432,313.56 and 170,030.51 is: 234,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,270.43 : 432,313.56 = 170,030.51 : x
  2. Step 2: Convert to fraction form
    313,270.43/432,313.56 = 170,030.51/x
  3. Step 3: Cross multiply
    313,270.43x = 432,313.56 × 170,030.51
  4. Step 4: Simplify right side
    313,270.43x = 73,506,495,086.72
  5. Step 5: Solve for x
    x = 73,506,495,086.72/313,270.43
  6. Step 6: Final answer
    x = 234,642.30

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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.