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Finding the Fourth Proportional to 607,034.60, 909,968.70 and 472,023.80

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Solution

The fourth proportional to 607,034.60, 909,968.70 and 472,023.80 is: 707,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,034.60 : 909,968.70 = 472,023.80 : x
  2. Step 2: Convert to fraction form
    607,034.60/909,968.70 = 472,023.80/x
  3. Step 3: Cross multiply
    607,034.60x = 909,968.70 × 472,023.80
  4. Step 4: Simplify right side
    607,034.60x = 429,526,883,655.06
  5. Step 5: Solve for x
    x = 429,526,883,655.06/607,034.60
  6. Step 6: Final answer
    x = 707,582.21

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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.