Home / 686,596,244.20-1,029,894,366.30-611,349,447.40

Finding the Fourth Proportional to 686,596,244.20, 1,029,894,366.30 and 611,349,447.40

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Solution

The fourth proportional to 686,596,244.20, 1,029,894,366.30 and 611,349,447.40 is: 917,024,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,596,244.20 : 1,029,894,366.30 = 611,349,447.40 : x
  2. Step 2: Convert to fraction form
    686,596,244.20/1,029,894,366.30 = 611,349,447.40/x
  3. Step 3: Cross multiply
    686,596,244.20x = 1,029,894,366.30 × 611,349,447.40
  4. Step 4: Simplify right side
    686,596,244.20x = 629,625,351,717,878,144
  5. Step 5: Solve for x
    x = 629,625,351,717,878,144/686,596,244.20
  6. Step 6: Final answer
    x = 917,024,171.10

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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.