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Finding the Fourth Proportional to 605,566,468.40, 908,774,855.40 and 260,767,547.60

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Solution

The fourth proportional to 605,566,468.40, 908,774,855.40 and 260,767,547.60 is: 391,334,399.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,566,468.40 : 908,774,855.40 = 260,767,547.60 : x
  2. Step 2: Convert to fraction form
    605,566,468.40/908,774,855.40 = 260,767,547.60/x
  3. Step 3: Cross multiply
    605,566,468.40x = 908,774,855.40 × 260,767,547.60
  4. Step 4: Simplify right side
    605,566,468.40x = 236,978,990,363,202,592
  5. Step 5: Solve for x
    x = 236,978,990,363,202,592/605,566,468.40
  6. Step 6: Final answer
    x = 391,334,399.66

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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.