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Finding the Fourth Proportional to 885,779,964.40, 1,328,662,948.20 and 230,729,724.40

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Solution

The fourth proportional to 885,779,964.40, 1,328,662,948.20 and 230,729,724.40 is: 346,092,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,779,964.40 : 1,328,662,948.20 = 230,729,724.40 : x
  2. Step 2: Convert to fraction form
    885,779,964.40/1,328,662,948.20 = 230,729,724.40/x
  3. Step 3: Cross multiply
    885,779,964.40x = 1,328,662,948.20 × 230,729,724.40
  4. Step 4: Simplify right side
    885,779,964.40x = 306,562,035,858,677,504
  5. Step 5: Solve for x
    x = 306,562,035,858,677,504/885,779,964.40
  6. Step 6: Final answer
    x = 346,092,763.64

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1.5x scale

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.