Home / 805,378.65-1,111,356.39-474,181.92

Finding the Fourth Proportional to 805,378.65, 1,111,356.39 and 474,181.92

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Solution

The fourth proportional to 805,378.65, 1,111,356.39 and 474,181.92 is: 654,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,378.65 : 1,111,356.39 = 474,181.92 : x
  2. Step 2: Convert to fraction form
    805,378.65/1,111,356.39 = 474,181.92/x
  3. Step 3: Cross multiply
    805,378.65x = 1,111,356.39 × 474,181.92
  4. Step 4: Simplify right side
    805,378.65x = 526,985,106,814.47
  5. Step 5: Solve for x
    x = 526,985,106,814.47/805,378.65
  6. Step 6: Final answer
    x = 654,332.10

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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.