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Finding the Fourth Proportional to 273,312.90, 409,969.35 and 155,214.90

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Solution

The fourth proportional to 273,312.90, 409,969.35 and 155,214.90 is: 232,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,312.90 : 409,969.35 = 155,214.90 : x
  2. Step 2: Convert to fraction form
    273,312.90/409,969.35 = 155,214.90/x
  3. Step 3: Cross multiply
    273,312.90x = 409,969.35 × 155,214.90
  4. Step 4: Simplify right side
    273,312.90x = 63,633,351,663.32
  5. Step 5: Solve for x
    x = 63,633,351,663.32/273,312.90
  6. Step 6: Final answer
    x = 232,822.35

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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.