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Finding the Fourth Proportional to 668,666.13, 922,775.45 and 366,860.13

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Solution

The fourth proportional to 668,666.13, 922,775.45 and 366,860.13 is: 506,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,666.13 : 922,775.45 = 366,860.13 : x
  2. Step 2: Convert to fraction form
    668,666.13/922,775.45 = 366,860.13/x
  3. Step 3: Cross multiply
    668,666.13x = 922,775.45 × 366,860.13
  4. Step 4: Simplify right side
    668,666.13x = 338,529,521,547.81
  5. Step 5: Solve for x
    x = 338,529,521,547.81/668,666.13
  6. Step 6: Final answer
    x = 506,275.86

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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.