Home / 641,587.79-885,484.65-369,603.36

Finding the Fourth Proportional to 641,587.79, 885,484.65 and 369,603.36

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Solution

The fourth proportional to 641,587.79, 885,484.65 and 369,603.36 is: 510,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,587.79 : 885,484.65 = 369,603.36 : x
  2. Step 2: Convert to fraction form
    641,587.79/885,484.65 = 369,603.36/x
  3. Step 3: Cross multiply
    641,587.79x = 885,484.65 × 369,603.36
  4. Step 4: Simplify right side
    641,587.79x = 327,278,101,868.42
  5. Step 5: Solve for x
    x = 327,278,101,868.42/641,587.79
  6. Step 6: Final answer
    x = 510,106.50

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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.