Home / 922,420.57-1,272,972.04-535,206.75

Finding the Fourth Proportional to 922,420.57, 1,272,972.04 and 535,206.75

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Solution

The fourth proportional to 922,420.57, 1,272,972.04 and 535,206.75 is: 738,603.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,420.57 : 1,272,972.04 = 535,206.75 : x
  2. Step 2: Convert to fraction form
    922,420.57/1,272,972.04 = 535,206.75/x
  3. Step 3: Cross multiply
    922,420.57x = 1,272,972.04 × 535,206.75
  4. Step 4: Simplify right side
    922,420.57x = 681,303,228,369.27
  5. Step 5: Solve for x
    x = 681,303,228,369.27/922,420.57
  6. Step 6: Final answer
    x = 738,603.68

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.