Home / 709,445.01-979,055.74-403,565.73

Finding the Fourth Proportional to 709,445.01, 979,055.74 and 403,565.73

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Solution

The fourth proportional to 709,445.01, 979,055.74 and 403,565.73 is: 556,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,445.01 : 979,055.74 = 403,565.73 : x
  2. Step 2: Convert to fraction form
    709,445.01/979,055.74 = 403,565.73/x
  3. Step 3: Cross multiply
    709,445.01x = 979,055.74 × 403,565.73
  4. Step 4: Simplify right side
    709,445.01x = 395,113,344,423.79
  5. Step 5: Solve for x
    x = 395,113,344,423.79/709,445.01
  6. Step 6: Final answer
    x = 556,933.01

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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.