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Finding the Fourth Proportional to 708,017.95, 977,061.85 and 385,727.05

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Solution

The fourth proportional to 708,017.95, 977,061.85 and 385,727.05 is: 532,301.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,017.95 : 977,061.85 = 385,727.05 : x
  2. Step 2: Convert to fraction form
    708,017.95/977,061.85 = 385,727.05/x
  3. Step 3: Cross multiply
    708,017.95x = 977,061.85 × 385,727.05
  4. Step 4: Simplify right side
    708,017.95x = 376,879,185,068.04
  5. Step 5: Solve for x
    x = 376,879,185,068.04/708,017.95
  6. Step 6: Final answer
    x = 532,301.74

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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.