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Finding the Fourth Proportional to 917,334,904.60, 1,287,896,837 and 917,334,904.60

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Solution

The fourth proportional to 917,334,904.60, 1,287,896,837 and 917,334,904.60 is: 1,287,896,837

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,334,904.60 : 1,287,896,837 = 917,334,904.60 : x
  2. Step 2: Convert to fraction form
    917,334,904.60/1,287,896,837 = 917,334,904.60/x
  3. Step 3: Cross multiply
    917,334,904.60x = 1,287,896,837 × 917,334,904.60
  4. Step 4: Simplify right side
    917,334,904.60x = 1,181,432,722,104,036,864
  5. Step 5: Solve for x
    x = 1,181,432,722,104,036,864/917,334,904.60
  6. Step 6: Final answer
    x = 1,287,896,837

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.