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Finding the Fourth Proportional to 972,752.70, 1,458,610.65 and 411,152.70

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Solution

The fourth proportional to 972,752.70, 1,458,610.65 and 411,152.70 is: 616,509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,752.70 : 1,458,610.65 = 411,152.70 : x
  2. Step 2: Convert to fraction form
    972,752.70/1,458,610.65 = 411,152.70/x
  3. Step 3: Cross multiply
    972,752.70x = 1,458,610.65 × 411,152.70
  4. Step 4: Simplify right side
    972,752.70x = 599,711,706,996.26
  5. Step 5: Solve for x
    x = 599,711,706,996.26/972,752.70
  6. Step 6: Final answer
    x = 616,509.94

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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.