Home / 709,514.22-979,152.47-403,582.74

Finding the Fourth Proportional to 709,514.22, 979,152.47 and 403,582.74

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Solution

The fourth proportional to 709,514.22, 979,152.47 and 403,582.74 is: 556,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,514.22 : 979,152.47 = 403,582.74 : x
  2. Step 2: Convert to fraction form
    709,514.22/979,152.47 = 403,582.74/x
  3. Step 3: Cross multiply
    709,514.22x = 979,152.47 × 403,582.74
  4. Step 4: Simplify right side
    709,514.22x = 395,169,036,720.37
  5. Step 5: Solve for x
    x = 395,169,036,720.37/709,514.22
  6. Step 6: Final answer
    x = 556,957.18

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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.