Home / 649,187.20-973,780.80-383,075.20

Finding the Fourth Proportional to 649,187.20, 973,780.80 and 383,075.20

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Solution

The fourth proportional to 649,187.20, 973,780.80 and 383,075.20 is: 574,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,187.20 : 973,780.80 = 383,075.20 : x
  2. Step 2: Convert to fraction form
    649,187.20/973,780.80 = 383,075.20/x
  3. Step 3: Cross multiply
    649,187.20x = 973,780.80 × 383,075.20
  4. Step 4: Simplify right side
    649,187.20x = 373,031,274,716.16
  5. Step 5: Solve for x
    x = 373,031,274,716.16/649,187.20
  6. Step 6: Final answer
    x = 574,612.80

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Double scale
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Similar ratio
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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.