Home / 914,878.90-1,262,979.03-609,136.30

Finding the Fourth Proportional to 914,878.90, 1,262,979.03 and 609,136.30

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Solution

The fourth proportional to 914,878.90, 1,262,979.03 and 609,136.30 is: 840,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,878.90 : 1,262,979.03 = 609,136.30 : x
  2. Step 2: Convert to fraction form
    914,878.90/1,262,979.03 = 609,136.30/x
  3. Step 3: Cross multiply
    914,878.90x = 1,262,979.03 × 609,136.30
  4. Step 4: Simplify right side
    914,878.90x = 769,326,373,311.79
  5. Step 5: Solve for x
    x = 769,326,373,311.79/914,878.90
  6. Step 6: Final answer
    x = 840,905.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.