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Finding the Fourth Proportional to 332,196,486.40, 498,145,430.40 and 127,656,582.40

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Solution

The fourth proportional to 332,196,486.40, 498,145,430.40 and 127,656,582.40 is: 191,427,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,196,486.40 : 498,145,430.40 = 127,656,582.40 : x
  2. Step 2: Convert to fraction form
    332,196,486.40/498,145,430.40 = 127,656,582.40/x
  3. Step 3: Cross multiply
    332,196,486.40x = 498,145,430.40 × 127,656,582.40
  4. Step 4: Simplify right side
    332,196,486.40x = 63,591,543,183,041,064
  5. Step 5: Solve for x
    x = 63,591,543,183,041,064/332,196,486.40
  6. Step 6: Final answer
    x = 191,427,500.85

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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.