Home / 1,111,731.60-1,668,034.80-437,698.20

Finding the Fourth Proportional to 1,111,731.60, 1,668,034.80 and 437,698.20

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Solution

The fourth proportional to 1,111,731.60, 1,668,034.80 and 437,698.20 is: 656,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,731.60 : 1,668,034.80 = 437,698.20 : x
  2. Step 2: Convert to fraction form
    1,111,731.60/1,668,034.80 = 437,698.20/x
  3. Step 3: Cross multiply
    1,111,731.60x = 1,668,034.80 × 437,698.20
  4. Step 4: Simplify right side
    1,111,731.60x = 730,095,829,497.36
  5. Step 5: Solve for x
    x = 730,095,829,497.36/1,111,731.60
  6. Step 6: Final answer
    x = 656,719.51

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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.