Home / 992,349.34-1,369,923.30-665,542.82

Finding the Fourth Proportional to 992,349.34, 1,369,923.30 and 665,542.82

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Solution

The fourth proportional to 992,349.34, 1,369,923.30 and 665,542.82 is: 918,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,349.34 : 1,369,923.30 = 665,542.82 : x
  2. Step 2: Convert to fraction form
    992,349.34/1,369,923.30 = 665,542.82/x
  3. Step 3: Cross multiply
    992,349.34x = 1,369,923.30 × 665,542.82
  4. Step 4: Simplify right side
    992,349.34x = 911,742,619,690.51
  5. Step 5: Solve for x
    x = 911,742,619,690.51/992,349.34
  6. Step 6: Final answer
    x = 918,771.83

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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.