Home / 916,603.40-1,265,064.84-534,630.20

Finding the Fourth Proportional to 916,603.40, 1,265,064.84 and 534,630.20

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Solution

The fourth proportional to 916,603.40, 1,265,064.84 and 534,630.20 is: 737,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,603.40 : 1,265,064.84 = 534,630.20 : x
  2. Step 2: Convert to fraction form
    916,603.40/1,265,064.84 = 534,630.20/x
  3. Step 3: Cross multiply
    916,603.40x = 1,265,064.84 × 534,630.20
  4. Step 4: Simplify right side
    916,603.40x = 676,341,868,422.17
  5. Step 5: Solve for x
    x = 676,341,868,422.17/916,603.40
  6. Step 6: Final answer
    x = 737,878.42

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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.