Home / 528,413,420.40-792,620,130.60-419,574,303.60

Finding the Fourth Proportional to 528,413,420.40, 792,620,130.60 and 419,574,303.60

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Solution

The fourth proportional to 528,413,420.40, 792,620,130.60 and 419,574,303.60 is: 629,361,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,413,420.40 : 792,620,130.60 = 419,574,303.60 : x
  2. Step 2: Convert to fraction form
    528,413,420.40/792,620,130.60 = 419,574,303.60/x
  3. Step 3: Cross multiply
    528,413,420.40x = 792,620,130.60 × 419,574,303.60
  4. Step 4: Simplify right side
    528,413,420.40x = 332,563,039,315,836,096
  5. Step 5: Solve for x
    x = 332,563,039,315,836,096/528,413,420.40
  6. Step 6: Final answer
    x = 629,361,455.40

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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.