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Finding the Fourth Proportional to 653,248,751.89, 900,877,740.65 and 476,757,190.93

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Solution

The fourth proportional to 653,248,751.89, 900,877,740.65 and 476,757,190.93 is: 657,482,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,248,751.89 : 900,877,740.65 = 476,757,190.93 : x
  2. Step 2: Convert to fraction form
    653,248,751.89/900,877,740.65 = 476,757,190.93/x
  3. Step 3: Cross multiply
    653,248,751.89x = 900,877,740.65 × 476,757,190.93
  4. Step 4: Simplify right side
    653,248,751.89x = 429,499,941,000,346,624
  5. Step 5: Solve for x
    x = 429,499,941,000,346,624/653,248,751.89
  6. Step 6: Final answer
    x = 657,482,987.55

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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.