Home / 684,190.40-944,332.63-397,875.65

Finding the Fourth Proportional to 684,190.40, 944,332.63 and 397,875.65

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Solution

The fourth proportional to 684,190.40, 944,332.63 and 397,875.65 is: 549,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,190.40 : 944,332.63 = 397,875.65 : x
  2. Step 2: Convert to fraction form
    684,190.40/944,332.63 = 397,875.65/x
  3. Step 3: Cross multiply
    684,190.40x = 944,332.63 × 397,875.65
  4. Step 4: Simplify right side
    684,190.40x = 375,726,953,261.11
  5. Step 5: Solve for x
    x = 375,726,953,261.11/684,190.40
  6. Step 6: Final answer
    x = 549,155.55

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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.