Home / 448,471,492.40-672,707,238.60-397,453,156.40

Finding the Fourth Proportional to 448,471,492.40, 672,707,238.60 and 397,453,156.40

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Solution

The fourth proportional to 448,471,492.40, 672,707,238.60 and 397,453,156.40 is: 596,179,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,471,492.40 : 672,707,238.60 = 397,453,156.40 : x
  2. Step 2: Convert to fraction form
    448,471,492.40/672,707,238.60 = 397,453,156.40/x
  3. Step 3: Cross multiply
    448,471,492.40x = 672,707,238.60 × 397,453,156.40
  4. Step 4: Simplify right side
    448,471,492.40x = 267,369,615,314,697,920
  5. Step 5: Solve for x
    x = 267,369,615,314,697,920/448,471,492.40
  6. Step 6: Final answer
    x = 596,179,734.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.