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Finding the Fourth Proportional to 490,587.69, 735,881.54 and 153,654.70

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Solution

The fourth proportional to 490,587.69, 735,881.54 and 153,654.70 is: 230,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,587.69 : 735,881.54 = 153,654.70 : x
  2. Step 2: Convert to fraction form
    490,587.69/735,881.54 = 153,654.70/x
  3. Step 3: Cross multiply
    490,587.69x = 735,881.54 × 153,654.70
  4. Step 4: Simplify right side
    490,587.69x = 113,071,657,264.24
  5. Step 5: Solve for x
    x = 113,071,657,264.24/490,587.69
  6. Step 6: Final answer
    x = 230,482.05

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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.