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Finding the Fourth Proportional to 630,510.96, 943,547.40 and 393,965.04

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Solution

The fourth proportional to 630,510.96, 943,547.40 and 393,965.04 is: 589,561.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,510.96 : 943,547.40 = 393,965.04 : x
  2. Step 2: Convert to fraction form
    630,510.96/943,547.40 = 393,965.04/x
  3. Step 3: Cross multiply
    630,510.96x = 943,547.40 × 393,965.04
  4. Step 4: Simplify right side
    630,510.96x = 371,724,689,182.90
  5. Step 5: Solve for x
    x = 371,724,689,182.90/630,510.96
  6. Step 6: Final answer
    x = 589,561.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.