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Finding the Fourth Proportional to 685,513.05, 947,813.84 and 600,386.10

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Solution

The fourth proportional to 685,513.05, 947,813.84 and 600,386.10 is: 830,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,513.05 : 947,813.84 = 600,386.10 : x
  2. Step 2: Convert to fraction form
    685,513.05/947,813.84 = 600,386.10/x
  3. Step 3: Cross multiply
    685,513.05x = 947,813.84 × 600,386.10
  4. Step 4: Simplify right side
    685,513.05x = 569,054,254,923.62
  5. Step 5: Solve for x
    x = 569,054,254,923.62/685,513.05
  6. Step 6: Final answer
    x = 830,114.40

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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.