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Finding the Fourth Proportional to 448,390.16, 618,774.36 and 247,186.16

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Solution

The fourth proportional to 448,390.16, 618,774.36 and 247,186.16 is: 341,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,390.16 : 618,774.36 = 247,186.16 : x
  2. Step 2: Convert to fraction form
    448,390.16/618,774.36 = 247,186.16/x
  3. Step 3: Cross multiply
    448,390.16x = 618,774.36 × 247,186.16
  4. Step 4: Simplify right side
    448,390.16x = 152,952,457,954.86
  5. Step 5: Solve for x
    x = 152,952,457,954.86/448,390.16
  6. Step 6: Final answer
    x = 341,114.66

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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.