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Finding the Fourth Proportional to 807,809.31, 1,114,762.01 and 440,289.63

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Solution

The fourth proportional to 807,809.31, 1,114,762.01 and 440,289.63 is: 607,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,809.31 : 1,114,762.01 = 440,289.63 : x
  2. Step 2: Convert to fraction form
    807,809.31/1,114,762.01 = 440,289.63/x
  3. Step 3: Cross multiply
    807,809.31x = 1,114,762.01 × 440,289.63
  4. Step 4: Simplify right side
    807,809.31x = 490,818,150,719.51
  5. Step 5: Solve for x
    x = 490,818,150,719.51/807,809.31
  6. Step 6: Final answer
    x = 607,591.60

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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.