Home / 516,045.32-712,118.90-286,617.28

Finding the Fourth Proportional to 516,045.32, 712,118.90 and 286,617.28

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Solution

The fourth proportional to 516,045.32, 712,118.90 and 286,617.28 is: 395,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,045.32 : 712,118.90 = 286,617.28 : x
  2. Step 2: Convert to fraction form
    516,045.32/712,118.90 = 286,617.28/x
  3. Step 3: Cross multiply
    516,045.32x = 712,118.90 × 286,617.28
  4. Step 4: Simplify right side
    516,045.32x = 204,105,582,154.59
  5. Step 5: Solve for x
    x = 204,105,582,154.59/516,045.32
  6. Step 6: Final answer
    x = 395,518.72

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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.