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Finding the Fourth Proportional to 342,508.16, 472,683.12 and 191,606.24

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Solution

The fourth proportional to 342,508.16, 472,683.12 and 191,606.24 is: 264,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,508.16 : 472,683.12 = 191,606.24 : x
  2. Step 2: Convert to fraction form
    342,508.16/472,683.12 = 191,606.24/x
  3. Step 3: Cross multiply
    342,508.16x = 472,683.12 × 191,606.24
  4. Step 4: Simplify right side
    342,508.16x = 90,569,035,334.67
  5. Step 5: Solve for x
    x = 90,569,035,334.67/342,508.16
  6. Step 6: Final answer
    x = 264,428.84

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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.