Home / 926,437.20-1,389,655.80-393,975.60

Finding the Fourth Proportional to 926,437.20, 1,389,655.80 and 393,975.60

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Solution

The fourth proportional to 926,437.20, 1,389,655.80 and 393,975.60 is: 590,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,437.20 : 1,389,655.80 = 393,975.60 : x
  2. Step 2: Convert to fraction form
    926,437.20/1,389,655.80 = 393,975.60/x
  3. Step 3: Cross multiply
    926,437.20x = 1,389,655.80 × 393,975.60
  4. Step 4: Simplify right side
    926,437.20x = 547,490,477,598.48
  5. Step 5: Solve for x
    x = 547,490,477,598.48/926,437.20
  6. Step 6: Final answer
    x = 590,963.40

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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.