Home / 945,096,921.55-1,304,233,988.13-521,710,828.75

Finding the Fourth Proportional to 945,096,921.55, 1,304,233,988.13 and 521,710,828.75

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Solution

The fourth proportional to 945,096,921.55, 1,304,233,988.13 and 521,710,828.75 is: 719,961,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,096,921.55 : 1,304,233,988.13 = 521,710,828.75 : x
  2. Step 2: Convert to fraction form
    945,096,921.55/1,304,233,988.13 = 521,710,828.75/x
  3. Step 3: Cross multiply
    945,096,921.55x = 1,304,233,988.13 × 521,710,828.75
  4. Step 4: Simplify right side
    945,096,921.55x = 680,432,994,822,090,240
  5. Step 5: Solve for x
    x = 680,432,994,822,090,240/945,096,921.55
  6. Step 6: Final answer
    x = 719,961,074.16

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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.