Home / 865,627.04-1,194,627.12-478,434.16

Finding the Fourth Proportional to 865,627.04, 1,194,627.12 and 478,434.16

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Solution

The fourth proportional to 865,627.04, 1,194,627.12 and 478,434.16 is: 660,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,627.04 : 1,194,627.12 = 478,434.16 : x
  2. Step 2: Convert to fraction form
    865,627.04/1,194,627.12 = 478,434.16/x
  3. Step 3: Cross multiply
    865,627.04x = 1,194,627.12 × 478,434.16
  4. Step 4: Simplify right side
    865,627.04x = 571,550,422,670.42
  5. Step 5: Solve for x
    x = 571,550,422,670.42/865,627.04
  6. Step 6: Final answer
    x = 660,273.30

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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.