Home / 696,403,445.78-961,036,722.70-383,130,933.70

Finding the Fourth Proportional to 696,403,445.78, 961,036,722.70 and 383,130,933.70

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Solution

The fourth proportional to 696,403,445.78, 961,036,722.70 and 383,130,933.70 is: 528,720,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,403,445.78 : 961,036,722.70 = 383,130,933.70 : x
  2. Step 2: Convert to fraction form
    696,403,445.78/961,036,722.70 = 383,130,933.70/x
  3. Step 3: Cross multiply
    696,403,445.78x = 961,036,722.70 × 383,130,933.70
  4. Step 4: Simplify right side
    696,403,445.78x = 368,202,896,888,038,976
  5. Step 5: Solve for x
    x = 368,202,896,888,038,976/696,403,445.78
  6. Step 6: Final answer
    x = 528,720,670.64

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Double scale
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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.