Home / 819,157.20-1,130,442.08-456,603.96

Finding the Fourth Proportional to 819,157.20, 1,130,442.08 and 456,603.96

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Solution

The fourth proportional to 819,157.20, 1,130,442.08 and 456,603.96 is: 630,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,157.20 : 1,130,442.08 = 456,603.96 : x
  2. Step 2: Convert to fraction form
    819,157.20/1,130,442.08 = 456,603.96/x
  3. Step 3: Cross multiply
    819,157.20x = 1,130,442.08 × 456,603.96
  4. Step 4: Simplify right side
    819,157.20x = 516,164,330,278.64
  5. Step 5: Solve for x
    x = 516,164,330,278.64/819,157.20
  6. Step 6: Final answer
    x = 630,116.33

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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.