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Finding the Fourth Proportional to 383,852.80, 575,779.20 and 347,111.20

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Solution

The fourth proportional to 383,852.80, 575,779.20 and 347,111.20 is: 520,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,852.80 : 575,779.20 = 347,111.20 : x
  2. Step 2: Convert to fraction form
    383,852.80/575,779.20 = 347,111.20/x
  3. Step 3: Cross multiply
    383,852.80x = 575,779.20 × 347,111.20
  4. Step 4: Simplify right side
    383,852.80x = 199,859,409,047.04
  5. Step 5: Solve for x
    x = 199,859,409,047.04/383,852.80
  6. Step 6: Final answer
    x = 520,666.80

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1.5x scale

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.