Home / 743,433,815.14-1,025,939,191.08-408,931,787.32

Finding the Fourth Proportional to 743,433,815.14, 1,025,939,191.08 and 408,931,787.32

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Solution

The fourth proportional to 743,433,815.14, 1,025,939,191.08 and 408,931,787.32 is: 564,326,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,433,815.14 : 1,025,939,191.08 = 408,931,787.32 : x
  2. Step 2: Convert to fraction form
    743,433,815.14/1,025,939,191.08 = 408,931,787.32/x
  3. Step 3: Cross multiply
    743,433,815.14x = 1,025,939,191.08 × 408,931,787.32
  4. Step 4: Simplify right side
    743,433,815.14x = 419,539,147,089,979,392
  5. Step 5: Solve for x
    x = 419,539,147,089,979,392/743,433,815.14
  6. Step 6: Final answer
    x = 564,326,155.93

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Double scale
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1.5x scale

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.