Home / 355,681.17-533,521.76-145,319.11

Finding the Fourth Proportional to 355,681.17, 533,521.76 and 145,319.11

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Solution

The fourth proportional to 355,681.17, 533,521.76 and 145,319.11 is: 217,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,681.17 : 533,521.76 = 145,319.11 : x
  2. Step 2: Convert to fraction form
    355,681.17/533,521.76 = 145,319.11/x
  3. Step 3: Cross multiply
    355,681.17x = 533,521.76 × 145,319.11
  4. Step 4: Simplify right side
    355,681.17x = 77,530,905,268.43
  5. Step 5: Solve for x
    x = 77,530,905,268.43/355,681.17
  6. Step 6: Final answer
    x = 217,978.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.