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Finding the Fourth Proportional to 563,500.61, 777,386.46 and 372,779.63

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Solution

The fourth proportional to 563,500.61, 777,386.46 and 372,779.63 is: 514,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,500.61 : 777,386.46 = 372,779.63 : x
  2. Step 2: Convert to fraction form
    563,500.61/777,386.46 = 372,779.63/x
  3. Step 3: Cross multiply
    563,500.61x = 777,386.46 × 372,779.63
  4. Step 4: Simplify right side
    563,500.61x = 289,793,833,038.88
  5. Step 5: Solve for x
    x = 289,793,833,038.88/563,500.61
  6. Step 6: Final answer
    x = 514,274.22

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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.