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Finding the Fourth Proportional to 480,042.40, 720,063.60 and 448,938.40

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Solution

The fourth proportional to 480,042.40, 720,063.60 and 448,938.40 is: 673,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,042.40 : 720,063.60 = 448,938.40 : x
  2. Step 2: Convert to fraction form
    480,042.40/720,063.60 = 448,938.40/x
  3. Step 3: Cross multiply
    480,042.40x = 720,063.60 × 448,938.40
  4. Step 4: Simplify right side
    480,042.40x = 323,264,200,482.24
  5. Step 5: Solve for x
    x = 323,264,200,482.24/480,042.40
  6. Step 6: Final answer
    x = 673,407.60

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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.