Home / 926,805.80-1,390,208.70-727,740.20

Finding the Fourth Proportional to 926,805.80, 1,390,208.70 and 727,740.20

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Solution

The fourth proportional to 926,805.80, 1,390,208.70 and 727,740.20 is: 1,091,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,805.80 : 1,390,208.70 = 727,740.20 : x
  2. Step 2: Convert to fraction form
    926,805.80/1,390,208.70 = 727,740.20/x
  3. Step 3: Cross multiply
    926,805.80x = 1,390,208.70 × 727,740.20
  4. Step 4: Simplify right side
    926,805.80x = 1,011,710,757,379.74
  5. Step 5: Solve for x
    x = 1,011,710,757,379.74/926,805.80
  6. Step 6: Final answer
    x = 1,091,610.30

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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.