Home / 1,152,525.32-1,590,486-643,227.56

Finding the Fourth Proportional to 1,152,525.32, 1,590,486 and 643,227.56

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Solution

The fourth proportional to 1,152,525.32, 1,590,486 and 643,227.56 is: 887,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,525.32 : 1,590,486 = 643,227.56 : x
  2. Step 2: Convert to fraction form
    1,152,525.32/1,590,486 = 643,227.56/x
  3. Step 3: Cross multiply
    1,152,525.32x = 1,590,486 × 643,227.56
  4. Step 4: Simplify right side
    1,152,525.32x = 1,023,044,428,994.16
  5. Step 5: Solve for x
    x = 1,023,044,428,994.16/1,152,525.32
  6. Step 6: Final answer
    x = 887,654.62

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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.