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Finding the Fourth Proportional to 566,886.47, 782,303.29 and 312,237.66

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Solution

The fourth proportional to 566,886.47, 782,303.29 and 312,237.66 is: 430,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,886.47 : 782,303.29 = 312,237.66 : x
  2. Step 2: Convert to fraction form
    566,886.47/782,303.29 = 312,237.66/x
  3. Step 3: Cross multiply
    566,886.47x = 782,303.29 × 312,237.66
  4. Step 4: Simplify right side
    566,886.47x = 244,264,547,118.71
  5. Step 5: Solve for x
    x = 244,264,547,118.71/566,886.47
  6. Step 6: Final answer
    x = 430,887.95

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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.