Home / 683,430.30-1,025,145.45-615,779.10

Finding the Fourth Proportional to 683,430.30, 1,025,145.45 and 615,779.10

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Solution

The fourth proportional to 683,430.30, 1,025,145.45 and 615,779.10 is: 923,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,430.30 : 1,025,145.45 = 615,779.10 : x
  2. Step 2: Convert to fraction form
    683,430.30/1,025,145.45 = 615,779.10/x
  3. Step 3: Cross multiply
    683,430.30x = 1,025,145.45 × 615,779.10
  4. Step 4: Simplify right side
    683,430.30x = 631,263,142,570.10
  5. Step 5: Solve for x
    x = 631,263,142,570.10/683,430.30
  6. Step 6: Final answer
    x = 923,668.65

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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.