Home / 806,875.40-1,210,313.10-523,440.20

Finding the Fourth Proportional to 806,875.40, 1,210,313.10 and 523,440.20

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Solution

The fourth proportional to 806,875.40, 1,210,313.10 and 523,440.20 is: 785,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,875.40 : 1,210,313.10 = 523,440.20 : x
  2. Step 2: Convert to fraction form
    806,875.40/1,210,313.10 = 523,440.20/x
  3. Step 3: Cross multiply
    806,875.40x = 1,210,313.10 × 523,440.20
  4. Step 4: Simplify right side
    806,875.40x = 633,526,531,126.62
  5. Step 5: Solve for x
    x = 633,526,531,126.62/806,875.40
  6. Step 6: Final answer
    x = 785,160.30

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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.