Home / 709,784.15-979,588.08-403,934.94

Finding the Fourth Proportional to 709,784.15, 979,588.08 and 403,934.94

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Solution

The fourth proportional to 709,784.15, 979,588.08 and 403,934.94 is: 557,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,784.15 : 979,588.08 = 403,934.94 : x
  2. Step 2: Convert to fraction form
    709,784.15/979,588.08 = 403,934.94/x
  3. Step 3: Cross multiply
    709,784.15x = 979,588.08 × 403,934.94
  4. Step 4: Simplify right side
    709,784.15x = 395,689,852,319.52
  5. Step 5: Solve for x
    x = 395,689,852,319.52/709,784.15
  6. Step 6: Final answer
    x = 557,479.14

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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.