Home / 819,230.15-1,130,521.43-456,632.39

Finding the Fourth Proportional to 819,230.15, 1,130,521.43 and 456,632.39

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Solution

The fourth proportional to 819,230.15, 1,130,521.43 and 456,632.39 is: 630,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,230.15 : 1,130,521.43 = 456,632.39 : x
  2. Step 2: Convert to fraction form
    819,230.15/1,130,521.43 = 456,632.39/x
  3. Step 3: Cross multiply
    819,230.15x = 1,130,521.43 × 456,632.39
  4. Step 4: Simplify right side
    819,230.15x = 516,232,698,851.54
  5. Step 5: Solve for x
    x = 516,232,698,851.54/819,230.15
  6. Step 6: Final answer
    x = 630,143.67

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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.