Home / 688,075.07-949,545.80-382,151.40

Finding the Fourth Proportional to 688,075.07, 949,545.80 and 382,151.40

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Solution

The fourth proportional to 688,075.07, 949,545.80 and 382,151.40 is: 527,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,075.07 : 949,545.80 = 382,151.40 : x
  2. Step 2: Convert to fraction form
    688,075.07/949,545.80 = 382,151.40/x
  3. Step 3: Cross multiply
    688,075.07x = 949,545.80 × 382,151.40
  4. Step 4: Simplify right side
    688,075.07x = 362,870,256,834.12
  5. Step 5: Solve for x
    x = 362,870,256,834.12/688,075.07
  6. Step 6: Final answer
    x = 527,370.16

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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.