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Finding the Fourth Proportional to 528,441,310.80, 792,661,966.20 and 382,566,661.20

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Solution

The fourth proportional to 528,441,310.80, 792,661,966.20 and 382,566,661.20 is: 573,849,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,441,310.80 : 792,661,966.20 = 382,566,661.20 : x
  2. Step 2: Convert to fraction form
    528,441,310.80/792,661,966.20 = 382,566,661.20/x
  3. Step 3: Cross multiply
    528,441,310.80x = 792,661,966.20 × 382,566,661.20
  4. Step 4: Simplify right side
    528,441,310.80x = 303,246,041,869,361,280
  5. Step 5: Solve for x
    x = 303,246,041,869,361,280/528,441,310.80
  6. Step 6: Final answer
    x = 573,849,991.80

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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.