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Finding the Fourth Proportional to 342,507.18, 472,661.16 and 185,343.12

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Solution

The fourth proportional to 342,507.18, 472,661.16 and 185,343.12 is: 255,774.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,507.18 : 472,661.16 = 185,343.12 : x
  2. Step 2: Convert to fraction form
    342,507.18/472,661.16 = 185,343.12/x
  3. Step 3: Cross multiply
    342,507.18x = 472,661.16 × 185,343.12
  4. Step 4: Simplify right side
    342,507.18x = 87,604,494,966.02
  5. Step 5: Solve for x
    x = 87,604,494,966.02/342,507.18
  6. Step 6: Final answer
    x = 255,774.19

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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.