Home / 856,681.95-1,182,221.10-474,708.72

Finding the Fourth Proportional to 856,681.95, 1,182,221.10 and 474,708.72

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Solution

The fourth proportional to 856,681.95, 1,182,221.10 and 474,708.72 is: 655,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,681.95 : 1,182,221.10 = 474,708.72 : x
  2. Step 2: Convert to fraction form
    856,681.95/1,182,221.10 = 474,708.72/x
  3. Step 3: Cross multiply
    856,681.95x = 1,182,221.10 × 474,708.72
  4. Step 4: Simplify right side
    856,681.95x = 561,210,665,137.99
  5. Step 5: Solve for x
    x = 561,210,665,137.99/856,681.95
  6. Step 6: Final answer
    x = 655,098.04

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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.