Home / 919,031.40-1,268,252.10-516,623.40

Finding the Fourth Proportional to 919,031.40, 1,268,252.10 and 516,623.40

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Solution

The fourth proportional to 919,031.40, 1,268,252.10 and 516,623.40 is: 712,933.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,031.40 : 1,268,252.10 = 516,623.40 : x
  2. Step 2: Convert to fraction form
    919,031.40/1,268,252.10 = 516,623.40/x
  3. Step 3: Cross multiply
    919,031.40x = 1,268,252.10 × 516,623.40
  4. Step 4: Simplify right side
    919,031.40x = 655,208,711,959.14
  5. Step 5: Solve for x
    x = 655,208,711,959.14/919,031.40
  6. Step 6: Final answer
    x = 712,933.98

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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.