Home / 785,248,051.10-1,177,872,076.65-664,315,699.10

Finding the Fourth Proportional to 785,248,051.10, 1,177,872,076.65 and 664,315,699.10

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Solution

The fourth proportional to 785,248,051.10, 1,177,872,076.65 and 664,315,699.10 is: 996,473,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,248,051.10 : 1,177,872,076.65 = 664,315,699.10 : x
  2. Step 2: Convert to fraction form
    785,248,051.10/1,177,872,076.65 = 664,315,699.10/x
  3. Step 3: Cross multiply
    785,248,051.10x = 1,177,872,076.65 × 664,315,699.10
  4. Step 4: Simplify right side
    785,248,051.10x = 782,478,912,050,113,664
  5. Step 5: Solve for x
    x = 782,478,912,050,113,664/785,248,051.10
  6. Step 6: Final answer
    x = 996,473,548.65

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Double scale
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Similar ratio
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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.