Home / 891,552.81-1,230,342.86-509,587.79

Finding the Fourth Proportional to 891,552.81, 1,230,342.86 and 509,587.79

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Solution

The fourth proportional to 891,552.81, 1,230,342.86 and 509,587.79 is: 703,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,552.81 : 1,230,342.86 = 509,587.79 : x
  2. Step 2: Convert to fraction form
    891,552.81/1,230,342.86 = 509,587.79/x
  3. Step 3: Cross multiply
    891,552.81x = 1,230,342.86 × 509,587.79
  4. Step 4: Simplify right side
    891,552.81x = 626,967,698,969.68
  5. Step 5: Solve for x
    x = 626,967,698,969.68/891,552.81
  6. Step 6: Final answer
    x = 703,231.14

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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.