Home / 534,679,987.40-802,019,981.10-351,013,977.80

Finding the Fourth Proportional to 534,679,987.40, 802,019,981.10 and 351,013,977.80

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Solution

The fourth proportional to 534,679,987.40, 802,019,981.10 and 351,013,977.80 is: 526,520,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,679,987.40 : 802,019,981.10 = 351,013,977.80 : x
  2. Step 2: Convert to fraction form
    534,679,987.40/802,019,981.10 = 351,013,977.80/x
  3. Step 3: Cross multiply
    534,679,987.40x = 802,019,981.10 × 351,013,977.80
  4. Step 4: Simplify right side
    534,679,987.40x = 281,520,223,840,991,840
  5. Step 5: Solve for x
    x = 281,520,223,840,991,840/534,679,987.40
  6. Step 6: Final answer
    x = 526,520,966.70

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Double scale
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Similar ratio
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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.