Home / 1,188,963.39-1,783,070.40-390,058.77

Finding the Fourth Proportional to 1,188,963.39, 1,783,070.40 and 390,058.77

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Solution

The fourth proportional to 1,188,963.39, 1,783,070.40 and 390,058.77 is: 584,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,963.39 : 1,783,070.40 = 390,058.77 : x
  2. Step 2: Convert to fraction form
    1,188,963.39/1,783,070.40 = 390,058.77/x
  3. Step 3: Cross multiply
    1,188,963.39x = 1,783,070.40 × 390,058.77
  4. Step 4: Simplify right side
    1,188,963.39x = 695,502,247,047.41
  5. Step 5: Solve for x
    x = 695,502,247,047.41/1,188,963.39
  6. Step 6: Final answer
    x = 584,965.23

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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.