Home / 885,053.20-1,220,197.47-578,602.72

Finding the Fourth Proportional to 885,053.20, 1,220,197.47 and 578,602.72

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Solution

The fourth proportional to 885,053.20, 1,220,197.47 and 578,602.72 is: 797,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,053.20 : 1,220,197.47 = 578,602.72 : x
  2. Step 2: Convert to fraction form
    885,053.20/1,220,197.47 = 578,602.72/x
  3. Step 3: Cross multiply
    885,053.20x = 1,220,197.47 × 578,602.72
  4. Step 4: Simplify right side
    885,053.20x = 706,009,575,079.12
  5. Step 5: Solve for x
    x = 706,009,575,079.12/885,053.20
  6. Step 6: Final answer
    x = 797,702.98

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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.