Home / 910,319.13-1,252,869.80-668,218.23

Finding the Fourth Proportional to 910,319.13, 1,252,869.80 and 668,218.23

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Solution

The fourth proportional to 910,319.13, 1,252,869.80 and 668,218.23 is: 919,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,319.13 : 1,252,869.80 = 668,218.23 : x
  2. Step 2: Convert to fraction form
    910,319.13/1,252,869.80 = 668,218.23/x
  3. Step 3: Cross multiply
    910,319.13x = 1,252,869.80 × 668,218.23
  4. Step 4: Simplify right side
    910,319.13x = 837,190,436,835.36
  5. Step 5: Solve for x
    x = 837,190,436,835.36/910,319.13
  6. Step 6: Final answer
    x = 919,666.97

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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.