Home / 912,033.54-1,258,606.56-498,572.12

Finding the Fourth Proportional to 912,033.54, 1,258,606.56 and 498,572.12

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Solution

The fourth proportional to 912,033.54, 1,258,606.56 and 498,572.12 is: 688,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,033.54 : 1,258,606.56 = 498,572.12 : x
  2. Step 2: Convert to fraction form
    912,033.54/1,258,606.56 = 498,572.12/x
  3. Step 3: Cross multiply
    912,033.54x = 1,258,606.56 × 498,572.12
  4. Step 4: Simplify right side
    912,033.54x = 627,506,138,372.25
  5. Step 5: Solve for x
    x = 627,506,138,372.25/912,033.54
  6. Step 6: Final answer
    x = 688,029.68

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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.