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Finding the Fourth Proportional to 585,793,235.20, 878,689,852.80 and 520,036,268.80

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Solution

The fourth proportional to 585,793,235.20, 878,689,852.80 and 520,036,268.80 is: 780,054,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,793,235.20 : 878,689,852.80 = 520,036,268.80 : x
  2. Step 2: Convert to fraction form
    585,793,235.20/878,689,852.80 = 520,036,268.80/x
  3. Step 3: Cross multiply
    585,793,235.20x = 878,689,852.80 × 520,036,268.80
  4. Step 4: Simplify right side
    585,793,235.20x = 456,950,592,482,533,248
  5. Step 5: Solve for x
    x = 456,950,592,482,533,248/585,793,235.20
  6. Step 6: Final answer
    x = 780,054,403.20

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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.