Home / 910,358.19-1,256,719.46-528,311.16

Finding the Fourth Proportional to 910,358.19, 1,256,719.46 and 528,311.16

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Solution

The fourth proportional to 910,358.19, 1,256,719.46 and 528,311.16 is: 729,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,358.19 : 1,256,719.46 = 528,311.16 : x
  2. Step 2: Convert to fraction form
    910,358.19/1,256,719.46 = 528,311.16/x
  3. Step 3: Cross multiply
    910,358.19x = 1,256,719.46 × 528,311.16
  4. Step 4: Simplify right side
    910,358.19x = 663,938,913,065.62
  5. Step 5: Solve for x
    x = 663,938,913,065.62/910,358.19
  6. Step 6: Final answer
    x = 729,316.13

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Double scale
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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.