Home / 819,133.28-1,130,409.48-456,580.48

Finding the Fourth Proportional to 819,133.28, 1,130,409.48 and 456,580.48

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Solution

The fourth proportional to 819,133.28, 1,130,409.48 and 456,580.48 is: 630,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,133.28 : 1,130,409.48 = 456,580.48 : x
  2. Step 2: Convert to fraction form
    819,133.28/1,130,409.48 = 456,580.48/x
  3. Step 3: Cross multiply
    819,133.28x = 1,130,409.48 × 456,580.48
  4. Step 4: Simplify right side
    819,133.28x = 516,122,902,974.95
  5. Step 5: Solve for x
    x = 516,122,902,974.95/819,133.28
  6. Step 6: Final answer
    x = 630,084.16

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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.