Home / 786,626.90-1,180,815.15-487,445.30

Finding the Fourth Proportional to 786,626.90, 1,180,815.15 and 487,445.30

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Solution

The fourth proportional to 786,626.90, 1,180,815.15 and 487,445.30 is: 731,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,626.90 : 1,180,815.15 = 487,445.30 : x
  2. Step 2: Convert to fraction form
    786,626.90/1,180,815.15 = 487,445.30/x
  3. Step 3: Cross multiply
    786,626.90x = 1,180,815.15 × 487,445.30
  4. Step 4: Simplify right side
    786,626.90x = 575,582,795,036.30
  5. Step 5: Solve for x
    x = 575,582,795,036.30/786,626.90
  6. Step 6: Final answer
    x = 731,710.03

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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.