Home / 786,393.19-1,085,095.99-442,208.60

Finding the Fourth Proportional to 786,393.19, 1,085,095.99 and 442,208.60

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Solution

The fourth proportional to 786,393.19, 1,085,095.99 and 442,208.60 is: 610,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,393.19 : 1,085,095.99 = 442,208.60 : x
  2. Step 2: Convert to fraction form
    786,393.19/1,085,095.99 = 442,208.60/x
  3. Step 3: Cross multiply
    786,393.19x = 1,085,095.99 × 442,208.60
  4. Step 4: Simplify right side
    786,393.19x = 479,838,778,603.51
  5. Step 5: Solve for x
    x = 479,838,778,603.51/786,393.19
  6. Step 6: Final answer
    x = 610,176.67

Related Problems

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Half scale
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Double scale
Find fourth proportional to 786,394.19, 1,085,097.37 and 442,209.60
Similar ratio
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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.