Home / 514,917.80-710,547.78-288,519.56

Finding the Fourth Proportional to 514,917.80, 710,547.78 and 288,519.56

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Solution

The fourth proportional to 514,917.80, 710,547.78 and 288,519.56 is: 398,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,917.80 : 710,547.78 = 288,519.56 : x
  2. Step 2: Convert to fraction form
    514,917.80/710,547.78 = 288,519.56/x
  3. Step 3: Cross multiply
    514,917.80x = 710,547.78 × 288,519.56
  4. Step 4: Simplify right side
    514,917.80x = 205,006,932,844.58
  5. Step 5: Solve for x
    x = 205,006,932,844.58/514,917.80
  6. Step 6: Final answer
    x = 398,135.26

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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.