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Finding the Fourth Proportional to 572,563,691.40, 859,293,434.70 and 265,893,803.40

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Solution

The fourth proportional to 572,563,691.40, 859,293,434.70 and 265,893,803.40 is: 399,048,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,563,691.40 : 859,293,434.70 = 265,893,803.40 : x
  2. Step 2: Convert to fraction form
    572,563,691.40/859,293,434.70 = 265,893,803.40/x
  3. Step 3: Cross multiply
    572,563,691.40x = 859,293,434.70 × 265,893,803.40
  4. Step 4: Simplify right side
    572,563,691.40x = 228,480,799,589,032,544
  5. Step 5: Solve for x
    x = 228,480,799,589,032,544/572,563,691.40
  6. Step 6: Final answer
    x = 399,048,705.01

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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.