Home / 1,186,089.50-1,636,801.08-642,225.12

Finding the Fourth Proportional to 1,186,089.50, 1,636,801.08 and 642,225.12

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Solution

The fourth proportional to 1,186,089.50, 1,636,801.08 and 642,225.12 is: 886,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,089.50 : 1,636,801.08 = 642,225.12 : x
  2. Step 2: Convert to fraction form
    1,186,089.50/1,636,801.08 = 642,225.12/x
  3. Step 3: Cross multiply
    1,186,089.50x = 1,636,801.08 × 642,225.12
  4. Step 4: Simplify right side
    1,186,089.50x = 1,051,194,770,019.13
  5. Step 5: Solve for x
    x = 1,051,194,770,019.13/1,186,089.50
  6. Step 6: Final answer
    x = 886,269.35

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Double scale
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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.