Home / 992,853.81-1,370,144.21-540,148.05

Finding the Fourth Proportional to 992,853.81, 1,370,144.21 and 540,148.05

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Solution

The fourth proportional to 992,853.81, 1,370,144.21 and 540,148.05 is: 745,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,853.81 : 1,370,144.21 = 540,148.05 : x
  2. Step 2: Convert to fraction form
    992,853.81/1,370,144.21 = 540,148.05/x
  3. Step 3: Cross multiply
    992,853.81x = 1,370,144.21 × 540,148.05
  4. Step 4: Simplify right side
    992,853.81x = 740,080,723,250.29
  5. Step 5: Solve for x
    x = 740,080,723,250.29/992,853.81
  6. Step 6: Final answer
    x = 745,407.55

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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.