Home / 516,386.25-712,679.85-290,031.75

Finding the Fourth Proportional to 516,386.25, 712,679.85 and 290,031.75

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Solution

The fourth proportional to 516,386.25, 712,679.85 and 290,031.75 is: 400,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,386.25 : 712,679.85 = 290,031.75 : x
  2. Step 2: Convert to fraction form
    516,386.25/712,679.85 = 290,031.75/x
  3. Step 3: Cross multiply
    516,386.25x = 712,679.85 × 290,031.75
  4. Step 4: Simplify right side
    516,386.25x = 206,699,784,085.24
  5. Step 5: Solve for x
    x = 206,699,784,085.24/516,386.25
  6. Step 6: Final answer
    x = 400,281.35

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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.