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Finding the Fourth Proportional to 525,701,665.60, 788,552,498.40 and 218,891,809.60

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Solution

The fourth proportional to 525,701,665.60, 788,552,498.40 and 218,891,809.60 is: 328,337,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,701,665.60 : 788,552,498.40 = 218,891,809.60 : x
  2. Step 2: Convert to fraction form
    525,701,665.60/788,552,498.40 = 218,891,809.60/x
  3. Step 3: Cross multiply
    525,701,665.60x = 788,552,498.40 × 218,891,809.60
  4. Step 4: Simplify right side
    525,701,665.60x = 172,607,683,339,377,088
  5. Step 5: Solve for x
    x = 172,607,683,339,377,088/525,701,665.60
  6. Step 6: Final answer
    x = 328,337,714.40

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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.