Home / 877,146.32-1,210,465.60-474,738.32

Finding the Fourth Proportional to 877,146.32, 1,210,465.60 and 474,738.32

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Solution

The fourth proportional to 877,146.32, 1,210,465.60 and 474,738.32 is: 655,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,146.32 : 1,210,465.60 = 474,738.32 : x
  2. Step 2: Convert to fraction form
    877,146.32/1,210,465.60 = 474,738.32/x
  3. Step 3: Cross multiply
    877,146.32x = 1,210,465.60 × 474,738.32
  4. Step 4: Simplify right side
    877,146.32x = 574,654,398,122.62
  5. Step 5: Solve for x
    x = 574,654,398,122.62/877,146.32
  6. Step 6: Final answer
    x = 655,140.87

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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.