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Finding the Fourth Proportional to 527,999.80, 790,962.90 and 360,038.20

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Solution

The fourth proportional to 527,999.80, 790,962.90 and 360,038.20 is: 539,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,999.80 : 790,962.90 = 360,038.20 : x
  2. Step 2: Convert to fraction form
    527,999.80/790,962.90 = 360,038.20/x
  3. Step 3: Cross multiply
    527,999.80x = 790,962.90 × 360,038.20
  4. Step 4: Simplify right side
    527,999.80x = 284,776,858,782.78
  5. Step 5: Solve for x
    x = 284,776,858,782.78/527,999.80
  6. Step 6: Final answer
    x = 539,350.32

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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.