Home / 713,834.73-985,093.38-391,547.52

Finding the Fourth Proportional to 713,834.73, 985,093.38 and 391,547.52

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Solution

The fourth proportional to 713,834.73, 985,093.38 and 391,547.52 is: 540,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,834.73 : 985,093.38 = 391,547.52 : x
  2. Step 2: Convert to fraction form
    713,834.73/985,093.38 = 391,547.52/x
  3. Step 3: Cross multiply
    713,834.73x = 985,093.38 × 391,547.52
  4. Step 4: Simplify right side
    713,834.73x = 385,710,869,907.42
  5. Step 5: Solve for x
    x = 385,710,869,907.42/713,834.73
  6. Step 6: Final answer
    x = 540,336.37

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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.