Home / 719,523,413.48-992,949,156.12-422,170,714.76

Finding the Fourth Proportional to 719,523,413.48, 992,949,156.12 and 422,170,714.76

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Solution

The fourth proportional to 719,523,413.48, 992,949,156.12 and 422,170,714.76 is: 582,599,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,523,413.48 : 992,949,156.12 = 422,170,714.76 : x
  2. Step 2: Convert to fraction form
    719,523,413.48/992,949,156.12 = 422,170,714.76/x
  3. Step 3: Cross multiply
    719,523,413.48x = 992,949,156.12 × 422,170,714.76
  4. Step 4: Simplify right side
    719,523,413.48x = 419,194,054,959,519,232
  5. Step 5: Solve for x
    x = 419,194,054,959,519,232/719,523,413.48
  6. Step 6: Final answer
    x = 582,599,602.88

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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.