Home / 1,038,186.30-1,556,987.85-328,431.90

Finding the Fourth Proportional to 1,038,186.30, 1,556,987.85 and 328,431.90

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Solution

The fourth proportional to 1,038,186.30, 1,556,987.85 and 328,431.90 is: 492,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,186.30 : 1,556,987.85 = 328,431.90 : x
  2. Step 2: Convert to fraction form
    1,038,186.30/1,556,987.85 = 328,431.90/x
  3. Step 3: Cross multiply
    1,038,186.30x = 1,556,987.85 × 328,431.90
  4. Step 4: Simplify right side
    1,038,186.30x = 511,364,477,852.42
  5. Step 5: Solve for x
    x = 511,364,477,852.42/1,038,186.30
  6. Step 6: Final answer
    x = 492,555.60

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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.