Home / 805,770.40-1,209,586.80-432,522.40

Finding the Fourth Proportional to 805,770.40, 1,209,586.80 and 432,522.40

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Solution

The fourth proportional to 805,770.40, 1,209,586.80 and 432,522.40 is: 649,283.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,770.40 : 1,209,586.80 = 432,522.40 : x
  2. Step 2: Convert to fraction form
    805,770.40/1,209,586.80 = 432,522.40/x
  3. Step 3: Cross multiply
    805,770.40x = 1,209,586.80 × 432,522.40
  4. Step 4: Simplify right side
    805,770.40x = 523,173,385,744.32
  5. Step 5: Solve for x
    x = 523,173,385,744.32/805,770.40
  6. Step 6: Final answer
    x = 649,283.45

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Double scale
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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.