Home / 912,521.57-1,368,570.02-343,959.89

Finding the Fourth Proportional to 912,521.57, 1,368,570.02 and 343,959.89

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Solution

The fourth proportional to 912,521.57, 1,368,570.02 and 343,959.89 is: 515,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,521.57 : 1,368,570.02 = 343,959.89 : x
  2. Step 2: Convert to fraction form
    912,521.57/1,368,570.02 = 343,959.89/x
  3. Step 3: Cross multiply
    912,521.57x = 1,368,570.02 × 343,959.89
  4. Step 4: Simplify right side
    912,521.57x = 470,733,184,973.85
  5. Step 5: Solve for x
    x = 470,733,184,973.85/912,521.57
  6. Step 6: Final answer
    x = 515,859.79

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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.