Home / 528,607,818.60-792,911,727.90-392,558,922.60

Finding the Fourth Proportional to 528,607,818.60, 792,911,727.90 and 392,558,922.60

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Solution

The fourth proportional to 528,607,818.60, 792,911,727.90 and 392,558,922.60 is: 588,838,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,607,818.60 : 792,911,727.90 = 392,558,922.60 : x
  2. Step 2: Convert to fraction form
    528,607,818.60/792,911,727.90 = 392,558,922.60/x
  3. Step 3: Cross multiply
    528,607,818.60x = 792,911,727.90 × 392,558,922.60
  4. Step 4: Simplify right side
    528,607,818.60x = 311,264,573,621,328,384
  5. Step 5: Solve for x
    x = 311,264,573,621,328,384/528,607,818.60
  6. Step 6: Final answer
    x = 588,838,383.90

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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.