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Finding the Fourth Proportional to 569,041.40, 785,209.95 and 339,556.15

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Solution

The fourth proportional to 569,041.40, 785,209.95 and 339,556.15 is: 468,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,041.40 : 785,209.95 = 339,556.15 : x
  2. Step 2: Convert to fraction form
    569,041.40/785,209.95 = 339,556.15/x
  3. Step 3: Cross multiply
    569,041.40x = 785,209.95 × 339,556.15
  4. Step 4: Simplify right side
    569,041.40x = 266,622,868,545.21
  5. Step 5: Solve for x
    x = 266,622,868,545.21/569,041.40
  6. Step 6: Final answer
    x = 468,547.40

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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.