Home / 687,516.16-948,765.10-381,595.18

Finding the Fourth Proportional to 687,516.16, 948,765.10 and 381,595.18

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Solution

The fourth proportional to 687,516.16, 948,765.10 and 381,595.18 is: 526,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,516.16 : 948,765.10 = 381,595.18 : x
  2. Step 2: Convert to fraction form
    687,516.16/948,765.10 = 381,595.18/x
  3. Step 3: Cross multiply
    687,516.16x = 948,765.10 × 381,595.18
  4. Step 4: Simplify right side
    687,516.16x = 362,044,182,460.42
  5. Step 5: Solve for x
    x = 362,044,182,460.42/687,516.16
  6. Step 6: Final answer
    x = 526,597.35

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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.