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Finding the Fourth Proportional to 436,501.80, 654,752.70 and 360,394.20

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Solution

The fourth proportional to 436,501.80, 654,752.70 and 360,394.20 is: 540,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,501.80 : 654,752.70 = 360,394.20 : x
  2. Step 2: Convert to fraction form
    436,501.80/654,752.70 = 360,394.20/x
  3. Step 3: Cross multiply
    436,501.80x = 654,752.70 × 360,394.20
  4. Step 4: Simplify right side
    436,501.80x = 235,969,075,514.34
  5. Step 5: Solve for x
    x = 235,969,075,514.34/436,501.80
  6. Step 6: Final answer
    x = 540,591.30

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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.