Home / 884,018.16-1,220,091.36-521,530.72

Finding the Fourth Proportional to 884,018.16, 1,220,091.36 and 521,530.72

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Solution

The fourth proportional to 884,018.16, 1,220,091.36 and 521,530.72 is: 719,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,018.16 : 1,220,091.36 = 521,530.72 : x
  2. Step 2: Convert to fraction form
    884,018.16/1,220,091.36 = 521,530.72/x
  3. Step 3: Cross multiply
    884,018.16x = 1,220,091.36 × 521,530.72
  4. Step 4: Simplify right side
    884,018.16x = 636,315,125,446.58
  5. Step 5: Solve for x
    x = 636,315,125,446.58/884,018.16
  6. Step 6: Final answer
    x = 719,798.70

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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.