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Finding the Fourth Proportional to 623,489.59, 860,415.16 and 337,009.68

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Solution

The fourth proportional to 623,489.59, 860,415.16 and 337,009.68 is: 465,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,489.59 : 860,415.16 = 337,009.68 : x
  2. Step 2: Convert to fraction form
    623,489.59/860,415.16 = 337,009.68/x
  3. Step 3: Cross multiply
    623,489.59x = 860,415.16 × 337,009.68
  4. Step 4: Simplify right side
    623,489.59x = 289,968,237,981.86
  5. Step 5: Solve for x
    x = 289,968,237,981.86/623,489.59
  6. Step 6: Final answer
    x = 465,073.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.