Home / 730,612.04-1,008,241.20-408,321.80

Finding the Fourth Proportional to 730,612.04, 1,008,241.20 and 408,321.80

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Solution

The fourth proportional to 730,612.04, 1,008,241.20 and 408,321.80 is: 563,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,612.04 : 1,008,241.20 = 408,321.80 : x
  2. Step 2: Convert to fraction form
    730,612.04/1,008,241.20 = 408,321.80/x
  3. Step 3: Cross multiply
    730,612.04x = 1,008,241.20 × 408,321.80
  4. Step 4: Simplify right side
    730,612.04x = 411,686,861,618.16
  5. Step 5: Solve for x
    x = 411,686,861,618.16/730,612.04
  6. Step 6: Final answer
    x = 563,482.18

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.