Home / 786,548.18-1,085,444.08-447,018.86

Finding the Fourth Proportional to 786,548.18, 1,085,444.08 and 447,018.86

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Solution

The fourth proportional to 786,548.18, 1,085,444.08 and 447,018.86 is: 616,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,548.18 : 1,085,444.08 = 447,018.86 : x
  2. Step 2: Convert to fraction form
    786,548.18/1,085,444.08 = 447,018.86/x
  3. Step 3: Cross multiply
    786,548.18x = 1,085,444.08 × 447,018.86
  4. Step 4: Simplify right side
    786,548.18x = 485,213,975,235.35
  5. Step 5: Solve for x
    x = 485,213,975,235.35/786,548.18
  6. Step 6: Final answer
    x = 616,890.34

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Double scale
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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.