Home / 877,368.32-1,210,745.95-490,186.70

Finding the Fourth Proportional to 877,368.32, 1,210,745.95 and 490,186.70

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Solution

The fourth proportional to 877,368.32, 1,210,745.95 and 490,186.70 is: 676,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,368.32 : 1,210,745.95 = 490,186.70 : x
  2. Step 2: Convert to fraction form
    877,368.32/1,210,745.95 = 490,186.70/x
  3. Step 3: Cross multiply
    877,368.32x = 1,210,745.95 × 490,186.70
  4. Step 4: Simplify right side
    877,368.32x = 593,491,561,768.87
  5. Step 5: Solve for x
    x = 593,491,561,768.87/877,368.32
  6. Step 6: Final answer
    x = 676,445.17

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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.