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Finding the Fourth Proportional to 488,077.60, 731,338.80 and 362,106.40

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Solution

The fourth proportional to 488,077.60, 731,338.80 and 362,106.40 is: 542,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,077.60 : 731,338.80 = 362,106.40 : x
  2. Step 2: Convert to fraction form
    488,077.60/731,338.80 = 362,106.40/x
  3. Step 3: Cross multiply
    488,077.60x = 731,338.80 × 362,106.40
  4. Step 4: Simplify right side
    488,077.60x = 264,822,460,048.32
  5. Step 5: Solve for x
    x = 264,822,460,048.32/488,077.60
  6. Step 6: Final answer
    x = 542,582.70

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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.