Home / 612,147.40-844,719.36-382,807.60

Finding the Fourth Proportional to 612,147.40, 844,719.36 and 382,807.60

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Solution

The fourth proportional to 612,147.40, 844,719.36 and 382,807.60 is: 528,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,147.40 : 844,719.36 = 382,807.60 : x
  2. Step 2: Convert to fraction form
    612,147.40/844,719.36 = 382,807.60/x
  3. Step 3: Cross multiply
    612,147.40x = 844,719.36 × 382,807.60
  4. Step 4: Simplify right side
    612,147.40x = 323,364,990,875.14
  5. Step 5: Solve for x
    x = 323,364,990,875.14/612,147.40
  6. Step 6: Final answer
    x = 528,246.94

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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.