Home / 1,152,628.08-1,590,562-643,363.24

Finding the Fourth Proportional to 1,152,628.08, 1,590,562 and 643,363.24

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Solution

The fourth proportional to 1,152,628.08, 1,590,562 and 643,363.24 is: 887,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,628.08 : 1,590,562 = 643,363.24 : x
  2. Step 2: Convert to fraction form
    1,152,628.08/1,590,562 = 643,363.24/x
  3. Step 3: Cross multiply
    1,152,628.08x = 1,590,562 × 643,363.24
  4. Step 4: Simplify right side
    1,152,628.08x = 1,023,309,121,740.88
  5. Step 5: Solve for x
    x = 1,023,309,121,740.88/1,152,628.08
  6. Step 6: Final answer
    x = 887,805.13

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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.