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Finding the Fourth Proportional to 448,482.72, 618,876.72 and 247,280.16

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Solution

The fourth proportional to 448,482.72, 618,876.72 and 247,280.16 is: 341,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,482.72 : 618,876.72 = 247,280.16 : x
  2. Step 2: Convert to fraction form
    448,482.72/618,876.72 = 247,280.16/x
  3. Step 3: Cross multiply
    448,482.72x = 618,876.72 × 247,280.16
  4. Step 4: Simplify right side
    448,482.72x = 153,035,934,341.88
  5. Step 5: Solve for x
    x = 153,035,934,341.88/448,482.72
  6. Step 6: Final answer
    x = 341,230.39

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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.