Home / 821,909.02-1,134,230.63-459,332.66

Finding the Fourth Proportional to 821,909.02, 1,134,230.63 and 459,332.66

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Solution

The fourth proportional to 821,909.02, 1,134,230.63 and 459,332.66 is: 633,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,909.02 : 1,134,230.63 = 459,332.66 : x
  2. Step 2: Convert to fraction form
    821,909.02/1,134,230.63 = 459,332.66/x
  3. Step 3: Cross multiply
    821,909.02x = 1,134,230.63 × 459,332.66
  4. Step 4: Simplify right side
    821,909.02x = 520,989,172,331.38
  5. Step 5: Solve for x
    x = 520,989,172,331.38/821,909.02
  6. Step 6: Final answer
    x = 633,876.94

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Double scale
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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.