Home / 578,830.40-868,245.60-554,254.40

Finding the Fourth Proportional to 578,830.40, 868,245.60 and 554,254.40

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Solution

The fourth proportional to 578,830.40, 868,245.60 and 554,254.40 is: 831,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,830.40 : 868,245.60 = 554,254.40 : x
  2. Step 2: Convert to fraction form
    578,830.40/868,245.60 = 554,254.40/x
  3. Step 3: Cross multiply
    578,830.40x = 868,245.60 × 554,254.40
  4. Step 4: Simplify right side
    578,830.40x = 481,228,944,080.64
  5. Step 5: Solve for x
    x = 481,228,944,080.64/578,830.40
  6. Step 6: Final answer
    x = 831,381.60

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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.