Home / 570,139.32-786,799.26-315,514.20

Finding the Fourth Proportional to 570,139.32, 786,799.26 and 315,514.20

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Solution

The fourth proportional to 570,139.32, 786,799.26 and 315,514.20 is: 435,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,139.32 : 786,799.26 = 315,514.20 : x
  2. Step 2: Convert to fraction form
    570,139.32/786,799.26 = 315,514.20/x
  3. Step 3: Cross multiply
    570,139.32x = 786,799.26 × 315,514.20
  4. Step 4: Simplify right side
    570,139.32x = 248,246,339,079.49
  5. Step 5: Solve for x
    x = 248,246,339,079.49/570,139.32
  6. Step 6: Final answer
    x = 435,413.47

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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.