Home / 369,116.80-553,329.60-289,110.40

Finding the Fourth Proportional to 369,116.80, 553,329.60 and 289,110.40

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Solution

The fourth proportional to 369,116.80, 553,329.60 and 289,110.40 is: 433,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,116.80 : 553,329.60 = 289,110.40 : x
  2. Step 2: Convert to fraction form
    369,116.80/553,329.60 = 289,110.40/x
  3. Step 3: Cross multiply
    369,116.80x = 553,329.60 × 289,110.40
  4. Step 4: Simplify right side
    369,116.80x = 159,973,341,987.84
  5. Step 5: Solve for x
    x = 159,973,341,987.84/369,116.80
  6. Step 6: Final answer
    x = 433,394.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.