Home / 516,384.75-712,677.78-290,030.25

Finding the Fourth Proportional to 516,384.75, 712,677.78 and 290,030.25

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Solution

The fourth proportional to 516,384.75, 712,677.78 and 290,030.25 is: 400,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,384.75 : 712,677.78 = 290,030.25 : x
  2. Step 2: Convert to fraction form
    516,384.75/712,677.78 = 290,030.25/x
  3. Step 3: Cross multiply
    516,384.75x = 712,677.78 × 290,030.25
  4. Step 4: Simplify right side
    516,384.75x = 206,698,114,702.85
  5. Step 5: Solve for x
    x = 206,698,114,702.85/516,384.75
  6. Step 6: Final answer
    x = 400,279.28

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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.