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Finding the Fourth Proportional to 495,630.30, 743,445.45 and 470,042.40

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Solution

The fourth proportional to 495,630.30, 743,445.45 and 470,042.40 is: 705,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,630.30 : 743,445.45 = 470,042.40 : x
  2. Step 2: Convert to fraction form
    495,630.30/743,445.45 = 470,042.40/x
  3. Step 3: Cross multiply
    495,630.30x = 743,445.45 × 470,042.40
  4. Step 4: Simplify right side
    495,630.30x = 349,450,883,587.08
  5. Step 5: Solve for x
    x = 349,450,883,587.08/495,630.30
  6. Step 6: Final answer
    x = 705,063.60

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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.