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Finding the Fourth Proportional to 543,505.85, 750,130.37 and 314,196.08

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Solution

The fourth proportional to 543,505.85, 750,130.37 and 314,196.08 is: 433,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,505.85 : 750,130.37 = 314,196.08 : x
  2. Step 2: Convert to fraction form
    543,505.85/750,130.37 = 314,196.08/x
  3. Step 3: Cross multiply
    543,505.85x = 750,130.37 × 314,196.08
  4. Step 4: Simplify right side
    543,505.85x = 235,688,016,421.32
  5. Step 5: Solve for x
    x = 235,688,016,421.32/543,505.85
  6. Step 6: Final answer
    x = 433,643.94

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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.