Home / 679,621.36-936,495.40-525,724.84

Finding the Fourth Proportional to 679,621.36, 936,495.40 and 525,724.84

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Solution

The fourth proportional to 679,621.36, 936,495.40 and 525,724.84 is: 724,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,621.36 : 936,495.40 = 525,724.84 : x
  2. Step 2: Convert to fraction form
    679,621.36/936,495.40 = 525,724.84/x
  3. Step 3: Cross multiply
    679,621.36x = 936,495.40 × 525,724.84
  4. Step 4: Simplify right side
    679,621.36x = 492,338,894,325.74
  5. Step 5: Solve for x
    x = 492,338,894,325.74/679,621.36
  6. Step 6: Final answer
    x = 724,431.17

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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.