Home / 646,263.77-891,826.62-359,783.88

Finding the Fourth Proportional to 646,263.77, 891,826.62 and 359,783.88

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Solution

The fourth proportional to 646,263.77, 891,826.62 and 359,783.88 is: 496,492.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,263.77 : 891,826.62 = 359,783.88 : x
  2. Step 2: Convert to fraction form
    646,263.77/891,826.62 = 359,783.88/x
  3. Step 3: Cross multiply
    646,263.77x = 891,826.62 × 359,783.88
  4. Step 4: Simplify right side
    646,263.77x = 320,864,841,630.89
  5. Step 5: Solve for x
    x = 320,864,841,630.89/646,263.77
  6. Step 6: Final answer
    x = 496,492.08

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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.