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Finding the Fourth Proportional to 318,618,652.20, 477,927,978.30 and 232,525,210.20

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Solution

The fourth proportional to 318,618,652.20, 477,927,978.30 and 232,525,210.20 is: 348,787,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,618,652.20 : 477,927,978.30 = 232,525,210.20 : x
  2. Step 2: Convert to fraction form
    318,618,652.20/477,927,978.30 = 232,525,210.20/x
  3. Step 3: Cross multiply
    318,618,652.20x = 477,927,978.30 × 232,525,210.20
  4. Step 4: Simplify right side
    318,618,652.20x = 111,130,303,614,668,528
  5. Step 5: Solve for x
    x = 111,130,303,614,668,528/318,618,652.20
  6. Step 6: Final answer
    x = 348,787,815.30

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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.