Home / 864,402.72-1,191,448.02-577,818.24

Finding the Fourth Proportional to 864,402.72, 1,191,448.02 and 577,818.24

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Solution

The fourth proportional to 864,402.72, 1,191,448.02 and 577,818.24 is: 796,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,402.72 : 1,191,448.02 = 577,818.24 : x
  2. Step 2: Convert to fraction form
    864,402.72/1,191,448.02 = 577,818.24/x
  3. Step 3: Cross multiply
    864,402.72x = 1,191,448.02 × 577,818.24
  4. Step 4: Simplify right side
    864,402.72x = 688,440,397,967.89
  5. Step 5: Solve for x
    x = 688,440,397,967.89/864,402.72
  6. Step 6: Final answer
    x = 796,434.79

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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.