Home / 516,243.10-712,423.88-286,815.19

Finding the Fourth Proportional to 516,243.10, 712,423.88 and 286,815.19

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Solution

The fourth proportional to 516,243.10, 712,423.88 and 286,815.19 is: 395,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,243.10 : 712,423.88 = 286,815.19 : x
  2. Step 2: Convert to fraction form
    516,243.10/712,423.88 = 286,815.19/x
  3. Step 3: Cross multiply
    516,243.10x = 712,423.88 × 286,815.19
  4. Step 4: Simplify right side
    516,243.10x = 204,333,990,502.74
  5. Step 5: Solve for x
    x = 204,333,990,502.74/516,243.10
  6. Step 6: Final answer
    x = 395,809.63

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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.