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Finding the Fourth Proportional to 692,592,780, 955,808,080.56 and 383,543,436

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Solution

The fourth proportional to 692,592,780, 955,808,080.56 and 383,543,436 is: 529,306,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,592,780 : 955,808,080.56 = 383,543,436 : x
  2. Step 2: Convert to fraction form
    692,592,780/955,808,080.56 = 383,543,436/x
  3. Step 3: Cross multiply
    692,592,780x = 955,808,080.56 × 383,543,436
  4. Step 4: Simplify right side
    692,592,780x = 366,593,915,374,547,200
  5. Step 5: Solve for x
    x = 366,593,915,374,547,200/692,592,780
  6. Step 6: Final answer
    x = 529,306,579.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.