Home / 1,038,109.10-1,556,971.65-290,000.30

Finding the Fourth Proportional to 1,038,109.10, 1,556,971.65 and 290,000.30

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Solution

The fourth proportional to 1,038,109.10, 1,556,971.65 and 290,000.30 is: 434,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,109.10 : 1,556,971.65 = 290,000.30 : x
  2. Step 2: Convert to fraction form
    1,038,109.10/1,556,971.65 = 290,000.30/x
  3. Step 3: Cross multiply
    1,038,109.10x = 1,556,971.65 × 290,000.30
  4. Step 4: Simplify right side
    1,038,109.10x = 451,522,245,591.50
  5. Step 5: Solve for x
    x = 451,522,245,591.50/1,038,109.10
  6. Step 6: Final answer
    x = 434,946.81

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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.