Home / 679,017.48-936,628.92-403,188.36

Finding the Fourth Proportional to 679,017.48, 936,628.92 and 403,188.36

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Solution

The fourth proportional to 679,017.48, 936,628.92 and 403,188.36 is: 556,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,017.48 : 936,628.92 = 403,188.36 : x
  2. Step 2: Convert to fraction form
    679,017.48/936,628.92 = 403,188.36/x
  3. Step 3: Cross multiply
    679,017.48x = 936,628.92 × 403,188.36
  4. Step 4: Simplify right side
    679,017.48x = 377,637,878,183.37
  5. Step 5: Solve for x
    x = 377,637,878,183.37/679,017.48
  6. Step 6: Final answer
    x = 556,153.40

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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.