Home / 685,319.64-943,628.64-608,705.58

Finding the Fourth Proportional to 685,319.64, 943,628.64 and 608,705.58

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Solution

The fourth proportional to 685,319.64, 943,628.64 and 608,705.58 is: 838,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,319.64 : 943,628.64 = 608,705.58 : x
  2. Step 2: Convert to fraction form
    685,319.64/943,628.64 = 608,705.58/x
  3. Step 3: Cross multiply
    685,319.64x = 943,628.64 × 608,705.58
  4. Step 4: Simplify right side
    685,319.64x = 574,392,019,871.77
  5. Step 5: Solve for x
    x = 574,392,019,871.77/685,319.64
  6. Step 6: Final answer
    x = 838,137.40

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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.