Home / 527,931.51-791,881.75-128,566.47

Finding the Fourth Proportional to 527,931.51, 791,881.75 and 128,566.47

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Solution

The fourth proportional to 527,931.51, 791,881.75 and 128,566.47 is: 192,845.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,931.51 : 791,881.75 = 128,566.47 : x
  2. Step 2: Convert to fraction form
    527,931.51/791,881.75 = 128,566.47/x
  3. Step 3: Cross multiply
    527,931.51x = 791,881.75 × 128,566.47
  4. Step 4: Simplify right side
    527,931.51x = 101,809,441,254.92
  5. Step 5: Solve for x
    x = 101,809,441,254.92/527,931.51
  6. Step 6: Final answer
    x = 192,845.93

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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.